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标题: [万花筒] 【整理】2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决 [打印本页]

作者: johnsonchen688    时间: 2013-2-14 07:57     标题: 2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

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Hand Sanitizers and Soaps Put to the Test


ABC's Dr. Richard Besser compares the best ways for killing germs

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作者: 徐欣玮    时间: 2013-2-14 09:02     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In the season of flu and so many other gems,we are told again and again that hand sanitizers and soap are the best defence.Last year,America spent more than 170 million dollars on hand sanitizers alone.So we wondered what's its best?And how does sanitizer compare in the showdown with soap.Well tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean,as many as 400,000 germs per hand,that's how many bacteria travel with us everyday.So you are in university of Maryland and * lab,six brave grad students tonight voluntarily dust hands in the toxic brew ,a thousand of Ecoli bacteria.Yep,Ecoli.Good,something is a little odd about rubbing Ecoli.To see what will take it off.
First up,hand sanitizers,we tested two kinds you will find in the store.One with 60% alcohol and one so-called natural formula containing no alcohol.The key with hand hanitizers is to use enough of it.Your hands should take a full 15-second or longer to dry.Now let that air dry,ok.Then,we pressed our hands onto special incubation plates to grow any remaining bacteria.The results,dramatic,here those green spots are the Ecoli that grew from unwashed hands.After,using hand sanitizer with 60% alcohol,but the formula without alcohol,just look how many germs are left behind.Alcohol-based hand sanitizer works so much better because alcohol breaks up the bacteria's proteins and kills them.
But if you really want to get clean,what's your best bet of all?Guess what,it's your old friend,soap.Soap not only does well on bacteria as the sanitizer,it gets more viruses too.Surprisingly,studies show regular and anti-bacterial soap are about equally effective.But how you use it is crucial.Most of us only spend five seconds at the sink.Just look how many germs remain.You have to wash your hands for a full 20 seconds to really get the bugs off.And yes,that's singing happy birthday twice.So let's review it again.Hand sanitizers are becoming to give a think.Look for one with at least 60% alcohol but washing with soap,any kind is better as long as you wash for long enough.
Dr. Richard Besser,ABC new,college of Maryland.

This post was generated by put listening repetition system,  Check the original dictation thread!
作者: xingxi114.com    时间: 2013-2-14 14:43

发现论坛的牛人太多了,我要努力啦
作者: xingxingcamille    时间: 2013-2-15 10:13

HOMEWORK

In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.

Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So here at the University of Maryland Food Safety Lab, six brave grad students and I voluntarily dust our hands in a toxic brew, the thousands of e-coil bacteria. Yeah, e-coil.

“Good? Something a little odd about rubbing e-coil.”

To see what would take it off.

First up, hands sanitizers. We tested two kinds you’ll find at the store: one with 60% alcohol, and on so-called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.

“Now let that air dry, ok?”

Then we pressed our hands onto special incubation plates to grow any remaining bacteria. The result? Dramatic. Here, those green spots are the e-coil that grew from unwashed hands. After, using hand sanitizer with 60% alcohol. But the formula without alcohol? Just look how many germs left behind.

Alcohol based sanitizers work so much better because alcohol breaks up the bacteria’s proteins and kills them. But if you really want to get clean, what’s your best of all? Guess what? It’s your old friend –- soap.

Soap not only does as well on bacteria as the sanitizer, it gets more viruses too. Surprisingly, studies show regular and antibacterial soap are about equally effective. But how you use it is crucial.

“Go!”

Most of us only spend five seconds at the sink.

“Stop!”

Just look how many germs remain. Yuk!

“Go!”

You have to wash your hands for a full twenty seconds to really get the bugs off. And yeah, that’s singing “Happy Birthday” twice.

So let’s rebuild again. Hand sanitizers if you can’t get to a sink. Look for one with at least 60% alcohol, but washing with soap -- any kind -- is better, as long as you wash for long enough.

Dr. Richard Besser, ABC News, College Park, Maryland.
作者: cathypengchen    时间: 2013-2-16 10:15     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

in the season of flu and so many other gems we will told again and again hand sanitizers and soap are the best defence.last year american spent more than 170 million dollars oon hand sanitizers alone.so we wondered what was the best and how do the sanitizers compared with the show down with soap,well tonight our chief medical editor doctor //puts them to the tests and get some real answers.
clean? as many as 400 million gems perhand,that is how many bacteria travel with it every day.so you are the  university of maryland from cecu lab  six brave grad students are voluntarily  dust their hands in a toxic brew,thousands of ecoli bacteria,ye ecoli,ye we are a little odd about rubbing ecoli.to see what we take it off.
first up hand sanitizers we tested two kinds you will find in the store.one was 16% alcohol and one so called natural formula containing no alcohol.the key with hand sanitizers is to use enough of it your hands should take a full 15 seconds longer to dry.now let there air dry then we press our hands onto special incubation place ,growing in a remaining bacteria the result dramatic,those green spots are equal ibek crew from unwashed hand.after using hand sanitizers with 16 % alcohol formula with all the alcohol just look how many gems are left behind.alcohol based hand sanitizers work so much better because alcohol break the bacteria's protein and kills them.but iof you willing want to get clean what you best of all.guess what? it is your old friend soap so not only does it is well on bectria as the sanitizier it is gets more virius too.surprisingly study show regular and antibactieria soap are about equally effective.but how you use it is crucial.most of us only spend 5 second in the sink,just look how many gems remain.yek,go .you have to wash your hands for a full 20 seconds to really get the bugs off.and yes that singing happy birthday twice.so lets review it again.hands sanitizers are begain to get your sink look for one with at least 16 % alcohol watching with soap any kind is better,as long as you wash long enough.






This post was generated by put listening repetition system,  Check the original dictation thread!
作者: panzhang    时间: 2013-2-16 17:48

HW:
In this season of flu and so many other germs were told again and again that hand sanitizers and soap by the best defense. Last year, American spend more than 170 million dollars on hands sanitizers alone. So we wandered what works best? And how do the sanitizers compared a show dump with soap? Well tonight our key medical editor doctor Richard Beser puts them to the test to gets some real answers.

Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So youth university Miriland from seeking lab, 6 brave grad students and I volunteerly donster hand in a toxic bru, thousands of equal life bacteria. Yeah, equal life.



Something that little odd about raving equal, too see what to take off, first up hand sanitizers. We kissed to two kinds of and find this all. One with 60% of alcohol, and one so-called natural formula containing no alcohol, the key with hand sanitizers is to use a naffibin. You hand should take up a bowl 15.2 too longer to dry. Now let that air dry ok? Then we press our hands to special incubation plates to grow any remaining bacteria. The results dramatic. Here those green sparks to the equal eye, the crew for unwashed hands, after using hands hand sanitizer with 60% alcohol, but the formula without alcohol, just look how many germ behind.

Alcohol based sanitizer works so much better, because alcohol breaks the bacteria’s proteins and kills them. But if you really want to get clean, what’s you best of all? Guess what? It’s your old friend, soap, soap not only gets it well on bacteria and sanitizer, it gets more viruses too. Surprisingly, study show regular and inter-bacteria soap, now equally affected. But how you use it it is crucial.

Most of us only think 5 seconds to sink, stop, just look out how many germs remain? Yark, go. You have to wash your hand for 420 seconds to really get the bugs off. And yes, they are singing happy birthday twice, so let for build again.


Hand sanitizers are can get to you sank. Look for one at least 60% alcohol, but wash with soap, any kind is better as long as you washed for long enough.


作者: Inuyasha1366    时间: 2013-2-17 09:39

Homework~
In this season of flu and some many other germs,we were told again and again that hand sanitizers and soap are the best defense.Last year,Americans spend more than 117 million dollars on sanitizers alone.So we wondered what works best and how did sanitizers compared a show done with soap?Tonight our cheif medical editor doctor Riched Besser puts them to the test and gets some real answers.

Cleaning.As many as 400,000 germs per hand,that's how many bacteria travel with us everyday.So youth university Mariland from secure lab,6 brave graduate student and I volunteerly dust our hands in a toxic brew with thousands of ecal bacteria.Yean,ecal-i.

Something that little odd about raving ecal-i.

To see what will take it off.First step,hands sanitizers,we test two kinds you will find this store. One with 60% alcohol,and one so-called natrual form that containing no alcohol.The key with hands sanitizers is to use enough of it and should take up for 15 seconds or longer to dry.

Now let that air dry OK

Then we pressed our hands onto special incubation plates to grow your bacteria.The results,dramatic.Those green spots are the ecal-i crew from unwanshed hands.After using hand sanitizer with 60% alcohol,but the formula wthout alcohol,just look how many germs are left behind.Alcohol based hands sanitizers worked so mach better because alcohol breaks some of bacteria proteins and kills them.But if you really want to get clean,what's your best of all?That's right,it's your old friend,soap.Soap  not only does as well on bacteria as hands sanitizers,it gets more virues too.Suprisely,study show regular and anti-bacteria soap are about equally affective.But how you use it is crucial.Most of us only spend 5 seconds of the sink.

Stop

Just look how many germs remain.You have to wash your hands for 20 seconds to really get the bulks off.That's singing Happy Birthday twice.So let's review it again.Hands sanitizers are begin central sank,look for one with at least 60% alcohol,but wash with soap,any kind is better as long as you wash for long enough.Doctor Riched Besser,ABC news.College Arc Mariland.
作者: cplu    时间: 2013-2-19 10:42

Something that little odd about raving equal, too see what to take off, first up hand sanitizers. We kissed to two kinds of and find this all. One with 60% of alcohol, and one so-called natural formula containing no alcohol, the key with hand sanitizers is to use a naffibin. You hand should take up a bowl 15.2 too longer to dry. Now let that air dry ok? Then we press our hands to special incubation plates to grow any remaining bacteria. The results dramatic. Here those green sparks to the equal eye, the crew for unwashed hands, after using hands hand sanitizer with 60% alcohol, but the formula without alcohol, just look how many germ behind.

Alcohol based sanitizer works so much better, because alcohol breaks the bacteria’s proteins and kills them. But if you really want to get clean, what’s you best of all? Guess what? It’s your old friend, soap, soap not only gets it well on bacteria and sanitizer, it gets more viruses too. Surprisingly, study show regular and inter-bacteria soap, now equally affected. But how you use it it is crucial.
Just look how many germs remain.You have to wash your hands for 20 seconds to really get the bulks off.That's singing Happy Birthday twice.So let's review it again.Hands sanitizers are begin central sank,look for one with at least 60% alcohol,but wash with soap,any kind is better as long as you wash for long enough.Doctor Riched Besser,ABC news.College Arc Mariland
作者: cplu    时间: 2013-2-19 10:43

Something that little odd about raving equal, too see what to take off, first up hand sanitizers. We kissed to two kinds of and find this all. One with 60% of alcohol, and one so-called natural formula containing no alcohol, the key with hand sanitizers is to use a naffibin. You hand should take up a bowl 15.2 too longer to dry. Now let that air dry ok? Then we press our hands to special incubation plates to grow any remaining bacteria. The results dramatic. Here those green sparks to the equal eye, the crew for unwashed hands, after using hands hand sanitizer with 60% alcohol, but the formula without alcohol, just look how many germ behind.

Alcohol based sanitizer works so much better, because alcohol breaks the bacteria’s proteins and kills them. But if you really want to get clean, what’s you best of all? Guess what? It’s your old friend, soap, soap not only gets it well on bacteria and sanitizer, it gets more viruses too. Surprisingly, study show regular and inter-bacteria soap, now equally affected. But how you use it it is crucial.
Just look how many germs remain.You have to wash your hands for 20 seconds to really get the bulks off.That's singing Happy Birthday twice.So let's review it again.Hands sanitizers are begin central sank,look for one with at least 60% alcohol,but wash with soap,any kind is better as long as you wash for long enough.Doctor Riched Besser,ABC news.College Arc Mariland
作者: 姚淇露    时间: 2013-2-19 14:47

In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
作者: 姚淇露    时间: 2013-2-19 14:48

In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
作者: mintzoe    时间: 2013-2-19 16:43     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

本帖最后由 mintzoe 于 2013-2-19 16:44 编辑

In this season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent more than 170 million dollars on hand sanitizers alone. So we wondered what works best, and how does the sanitizers compare in a showdown with soap? Well tonight, our chief medical editor Dr. Richard Besser puts them to a test and gets some real answers.

Clean? As many as 400,000 germs per hand--that's how many bacteria travel with us everyday. So here are the University Maryland Food Safety Lab, six brave grads students and I voluntarily dust our hands in a toxic brew of thousands of Ecoli bacteria. Yeah. Ecoli.


Good. Something now a little odd about rubbing Ecoli.
To see what would take it off. First step, hands sanitizers. We tested two kinds you'll find at the store: one with 60% of alcohol, and one so-called natural formula, containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.
Now let the air dry, OK?
Then we press our hands onto special incubation plates to grow any remaining bacteria. The results? Dramatic. Here, those green spots are the Ecoli. They grew from the unwashed hands. After, using hand sanitizer with 60% alcohol, but the formula without alcohol? Just look how many germs left behind. Alcohol-based hand sanitizer works so much better, because alcohol breaks up the bacteria's proteins and kills them. But if you really want to get clean, what's your best of all? Guess what? It's your old friend--soap. Soap not only does well on bacteria as a sanitizer, it get more viruses too. Surprisingly, study show regular anti-bacteria soap are about equally effective. But how you use it is crucial. Ready? Go!


Most of us only spend five seconds at the sink. Stop. Just look how many germs remain. Yek!


Go! You have to wash your hands for full 20 seconds to really get the bugs off. And yes, that's sing happy birthday twice. So let's review it again. Hands in sanitizers if you can't get to a sink. Look for one with at least 60% alcohol, but wash with soap, all kind is better, as long as you wash for long enough.
Dr. Richard Besser, ABC News, College Park, Maryland.

This post was generated by put listening repetition system,  Check the original dictation thread!
作者: lily2bsb    时间: 2013-2-20 10:56

In this season of flu and so many other germs, we told again and again that hand sanitizers and soaps are the best defense. Last year in America spent more than 170 million dollars on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in the showdown with soap. Well tonight our chief medical editor Dr. Richard Besser puts them up to the test and gets some real answers.
Clean.
As many as 400000 germs per hand, that’s how many bacteria travel with us bevery day. So you are in the university of Maryland Food and Safety Lab, 6 brave grat students tonight, voluntarily dust their hands in a toxic brew with thousands of ecoli-bacteria, yep, ecoli.
Good, something that little odd about rubbing ecoli.
To see what they will take it off, first step, hand sanitizers. You tested two kinds you find in this store, one the 60% alcohol, and one so-called natural formula containing no alcohol. They key with hand sanitizers is to use enough of it, you hands should take a full 15 seconds or longer to dry.
Now let that air dry, okay?
Then we pressed our hands on this special incubation plates to grow in your remaining bacteria. The results, dramatic. Here those green spots are the ecoli grew from unwashed hands, after using hand sanitizers with 60% alcohol, but the formula without alcohol, just look how many germs left behind. Alcohol based sanitizer worked so much better because alcohol breaks the bacteria proteins and kills them. But if you really want to get a clean, what’s the best of them all?
Guess what? It’s your old friend, soap. Soap not only does well on bacteria as the sanitizers, it kills more viruses too. Surprisingly, studies show that regular and anti-bacteria soap are about equally effective. But how you use it is crucial, most of us only use it 5 seconds at the same.
Stop.
Just look how many germs remain. Yuck.
Go.
You have to wash your hands for a full 20 seconds to really get the bugs off, and yep that’s singing happy birthday twice. So let’s review it again, hand sanitizers if you can’t get to a sink, look for one with at least with 60% alcohol, but wash with soap, any kind is better as long as you wash for long enough.
Dr Richard Besser, ABC News, Maryland
作者: scbcl2005    时间: 2013-2-20 18:06

Hw:

In this sean of flu and so many other germs, we told again and again the hand sanitizers and soap are the best defense. Last year, Americans spend more than 170 million dollars on the hand sanitizers alone. So, we wonder what works the best, and how the sanitizers compared in a showdown with soap. Well, tonight we chief medical editor Dr. Rachel Bass puts them to test and get some real anwers.

Clean? As many as 400,000 germs per hand. That's how many bacterial travel with us everyday. "Here's a Lab" So Yale university Melin from safty lab. 6 brave graduates students tonight volunteerly dust the hands in a toxical brew, thousand of Ecoli bacterial (yeah). Ecoli? (good)

Something is now little odd about rubbing Ecoli. Yeah. To see what we will take off. First up, hand sanitizers. We cast two kinds you find in this store. One with 60% of alcohol. And one socalled natural formula that containing no alcohol. OH, that's good. The key with hand sanitizers is to use enough of it. Your hands should take up for 15 seconds or longer to dry. Now let that airdry, ok? Then we press our hands onto a special incubation plates to grow and remain bacterial. The results dramatical. Here: those green spots of the Ecoli, they grow from unwashed hands. After, using hand sanitizers with 60% of alcohol, but the formula without alcohol just look at how many germs left behind. Alcohol-based hand sanitizer just work so much better because alcohol breaks up the bacterials proteins, they kills them. But if you will really want to get cleaned, what's your best of all. Guess what? It's your old friend : soap. Soap not only does it as well bacterial as sanitizers, it gets more viruses too. Surpprisingly, study show regular and the anti-bacterial soap about equally effective. But how you are using it is crucial. We go! Most of us only spend 5 seconds of the sink. Ding, Stop! just look at how many germs remain. Yack! Go! you have to wash your hands for 20 seconds to really get bugs off. And yes, that singing happy birthday twice. So, let's review again. hand sanitizers if you can get to a sink, look for one with at least 60% of alcohol, but wash with a soap any kind is better as long as you wash for long enough.

Dr.Richard Besser, ABC news, Collegue Park of Maryland.
作者: jennysyy    时间: 2013-2-26 22:06

本帖最后由 jennysyy 于 2013-2-26 22:11 编辑

HOMEWORK

In the season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.

Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So here at the University of Maryland Food Safety Lab, six brave grad students and I voluntarily dust our hands in a toxic brew, the thousands of ecoli bacteria. Yeah, ecoli.

“Good? Something a little odd about rubbing ecoli.”

To see what would take it off.

First up, hands sanitizers. We tested two kinds you’ll find at the store: one with 60% alcohol, and on so-called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.

“Now let that air dry, ok?”

Then we pressed our hands onto special incubation plates to grow any remaining bacteria. The result? Dramatic. Here, those green spots are the e-coil that grew from unwashed hands. After, using hand sanitizer with 60% alcohol. But the formula without alcohol? Just look how many germs left behind.

Alcohol based sanitizers work so much better because alcohol breaks up the bacteria’s proteins and kills them. But if you really want to get clean, what’s your best of all? Guess what? It’s your old friend –- soap.

Soap not only does as well on bacteria as the sanitizer, it gets more viruses too. Surprisingly, studies show regular and antibacterial soap are about equally effective. But how you use it is crucial.

“Go!”

Most of us only spend five seconds at the sink.

“Stop!”

Just look how many germs remain. Yuk!

“Go!”

You have to wash your hands for a full twenty seconds to really get the bugs off. And yeah, that’s singing “Happy Birthday” twice.

So let’s rebuild again. Hand sanitizers if you can’t get to a sink. Look for one with at least 60% alcohol, but washing with soap -- any kind -- is better, as long as you wash for long enough.

Dr. Richard Besser, ABC News, College Park, Maryland.
作者: 陆亭宇_0    时间: 2013-2-27 10:17

HW

in the season of flu and so many other germs, we're told again and again that hand sanitizers and soap are the best defense. Last year American government spend over million dollars on hand sanitizers alone.  So we wondered what were the best and how did  hand sanitizers compare the showdown  with the soap? Tonight doctorXXX puts them to test and get some real answers.

cleaning?as many as 400 thousand germs on each hand. that's how many bacteria travel with us every day.so .......6 brave grad students and I volunteered dust hands in a toxic brew with thousands of ecoli bacteria.Yep,ecoli.

to see what would take off, first step, hands in the ...we tested two kinds to find the ..one with 60% alcohol, and one so-called natural fomula containing no alcohol.
the key with hand sanitizers is to use enoughly. you hands should take a full of fifty seconds or longer to dry.
now let that air dry ok?
then we place our hands on a special ....place to grow any remaining bacteria.
the results :dramatic.
those green spots are the ecoli from unwashed hands. after, using sanitizer with 60% alcohol.
But the fomular without alcohol?look how many germs left behind.
alcohol based sanitizer works so much better because alcohol breaks bacteria's protein and kills them.
But you really want to get clean? What is the best of all? Guess what? itls our old friend -- soap.
soap not only does well on bacteria as sanitizer, it gets more ...,too. Surprings, study shows that the anti-bacteria and regular soap are equally affective. but how you use is crucial. most of us just spend 5 seconds on the sink.just look  how many germs remain? yerk!
you have to wash your hands for full 20 seconds to get the bug ...and yes,that's singing happybirthday twice.
so let's rebuild again:
hand sanitizers began get to sink, but look for one with at least 60% alcohol. But wash with soap, any kind is better, as long as you wash long enough.
作者: 1242QYJ37    时间: 2013-3-3 16:34

Something that little odd about raving equal, too see what to take off, first up hand sanitizers. We   chose  two kinds of and find this all. One with 60% of alcohol, and one so-called natural formula containing no alcohol, the key with hand sanitizers is to use a naffibin. You hand should take up a bowl 15.2 too longer to dry. Now let that air dry ok? Then we press our hands to special incubation plates to grow any remaining bacteria. The results dramatic. Here those green sparks to the equal eye, the crew for unwashed hands, after using hands hand sanitizer with 60% alcohol, but the formula without alcohol, just look how many germ behind.

Alcohol based sanitizer works so much better, because alcohol breaks the bacteria’s proteins and kills them. But if you really want to get clean, what’s you best of all? Guess what? It’s your old friend, soap, soap not only gets it well on bacteria and sanitizer, it gets more viruses too. Surprisingly, study show regular and inter-bacteria soap, now equally affected. But how you use it it is crucial.
Just look how many germs remain.You have to wash your hands for 20 seconds to really get the bulks off.That's singing Happy Birthday twice.So let's review it again.
Hands sanitizers are begin central sank,look for one with at least 60% alcohol,but wash with soap,any kind is better as long as you wash for long enough.Doctor Riched Besser,ABC news.College Arc Mariland.
作者: tuer123511    时间: 2013-3-5 22:42     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In the season of flu,some many other jerms.we are told again and again that hand sanitaizers and soap are the best defects.last year Americans spent more than 17o millon dollars on hand sanitaizers alone.so we wonder what works best and how does the sanitaizers compare in a showdown with soap.Tonight our chief medical eiditor doctor Richard puts them to the test to get some real answears.as many as 400,000 jerms per hand that's how many bacterias travlle with us everyday.so here is the Uiversity of Maryland food safety lab.6 pre-graduate students are volunteerily dust their hands in a toxic brew  with thousands of equalized bacteria.something a little odd about reading equalize.first step:hand sanitizers we tested 2 kinds you will find at this  store .one with 60% alcohol,and one so called  containing no alcohol.the key with hand sanitizers is to use enough of it.your hand should take a full 15 seconds or longer to dry.now let that area dry ok then we press our hands onto special incubation plates to grow any remaining bacteria .the results dramatic.here those green spot of the equalize that crew from unwashed hands.after using hand sanitizers with 60% alcohol,but the formula without alcohol just look how many jerms are left behind.alcohol based hand sanitizer works so much better.because alcohol breaks up the bateria protein and kills them.but if you really want to get cleaned what's your best of all.guess what is your old friend soap.soap not only does as well on bateria as hand sanitizer it gets more virus too.study shows regular anti-bacteria soap are about equally effective.but hpw you use it is crucial.most of us only spend 5 seconds at the sink.just look at how many jerms remained.you have to wash your hands for a full to really get the bugs off .
This post was generated by put listening repetition system,  Check the original dictation thread!
作者: xt-yj    时间: 2013-3-10 21:17

In this season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent $170 million on hand sanitizers alone. So we wondered what works best and how do the sanitizers compare in a showdown with soap? Well, tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.

Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So you are  at the University of Maryland Food Safety Lab, six brave graduate students and I voluntarily dust our hands in a toxic brew, the thousands of ecoli  bacteria. Yeah, ecoli.

“Good? Something a little odd about rubbing ecoli.”

Just to see what would take it off.

First up, hands sanitizers. We tested two kinds you’ll find at the store: one with 60% alcohol, and on so-called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.

“Now let that air dry, ok?”

Then we pressed our hands onto special incubation plates to grow any remaining bacteria. The result? Dramatic. Here, those green spots are the ecoli that grew from unwashed hands. After, using hand sanitizer with 60% alcohol. But the formula without alcohol? Just look how many germs left behind.

Alcohol based sanitizers work so much better because alcohol breaks up the bacteria’s proteins and kills them. But if you really want to get clean, what’s your best of all? Guess what? It’s your old friend –- soap.

Soap not only does as well on bacteria as the sanitizer, it gets more viruses too. Surprisingly, studies show regular and antibacterial soap are about equally effective. But how you use it is crucial.

“Go!”

Most of us only spend five seconds at the sink.

“Stop!”

Just look how many germs remain. Yuk!

“Go!”

You have to wash your hands for a full twenty seconds to really get the bugs off. And yeah, that’s singing “Happy Birthday” twice.

So let’s rebuild again. Hand sanitizers if you can’t get to a sink. Look for one with at least 60% alcohol, but washing with soap -- any kind -- is better, as long as you wash for long enough.

Dr. Richard Besser, ABC News, College Park, Maryland.
作者: 张晓玥    时间: 2013-3-11 06:58

homework
In the season of flu and so many other gems,we are told again and again that hand sanitizers and soap are the best defence.Last year,America spent more than 170 million dollars on hand sanitizers alone.So we wondered what's its best?And how does sanitizer compare in the showdown with soap.Well tonight our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean,as many as 400,000 germs per hand,that's how many bacteria travel with us everyday.So you are in university of Maryland and * lab,six brave grad students tonight voluntarily dust hands in the toxic brew ,a thousand of Ecoli bacteria.Yep,Ecoli.Good,something is a little odd about rubbing Ecoli.To see what will take it off.
First up,hand sanitizers,we tested two kinds you will find in the store.One with 60% alcohol and one so-called natural formula containing no alcohol.The key with hand hanitizers is to use enough of it.Your hands should take a full 15-second or longer to dry.Now let that air dry,ok.Then,we pressed our hands onto special incubation plates to grow any remaining bacteria.The results,dramatic,here those green spots are the Ecoli that grew from unwashed hands.After,using hand sanitizer with 60% alcohol,but the formula without alcohol,just look how many germs are left behind.Alcohol-based hand sanitizer works so much better because alcohol breaks up the bacteria's proteins and kills them.
But if you really want to get clean,what's your best bet of all?Guess what,it's your old friend,soap.Soap not only does well on bacteria as the sanitizer,it gets more viruses too.Surprisingly,studies show regular and anti-bacterial soap are about equally effective.But how you use it is crucial.Most of us only spend five seconds at the sink.Just look how many germs remain.You have to wash your hands for a full 20 seconds to really get the bugs off.And yes,that's singing happy birthday twice.So let's review it again.Hand sanitizers are becoming to give a think.Look for one with at least 60% alcohol but washing with soap,any kind is better as long as you wash for long enough.
作者: 微暖时光    时间: 2013-3-12 09:28

本[b]帖最后由 mintzoe 于 2013-2-19 16:44 编辑

In this season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent more than 170 million dollars on hand sanitizers alone. So we wondered what works best, and how does the sanitizers compare in a showdown with soap? Well tonight, our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean? As many as 400,000 germs per hand--that's how many bacteria travel with us everyday. So youth University Maryland Food Safety Lab, six brave grads students and I voluntarily dust our hands in a toxic brew of thousands of Ecoli bacteria. Yeah. Ecoli.
Good. Something now a little odd about rubbing Ecoli.
To see what would take it off. First step, hands sanitizers. We tested two kinds you'll find at the store: one with 60% of alcohol, and one so-called natural formula, containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.
Now let the air dry, OK?Then we pressed our hands on this special incubation plates to grow in your remaining bacteria. The results, dramatic. Here those green spots are the ecoli that grew from unwashed hands, after using hand sanitizers with 60% alcohol, but the formula without alcohol, just look how many germs are left behind. Alcohol based sanitizer worked so much better because alcohol breaks up the bacteria proteins and kills them. But if you really want to get a clean, what’s your best bet of them all?
Guess what? It’s your old friend, soap. Soap not only does well on bacteria as the sanitizers, it kills more viruses too. Surprisingly, studies show that regular and anti-bacteria soap are about equally effective. But how you use it is crucial, most of us only use it 5 seconds at the sink.
Stop.
Just look how many germs remain. Yuck.
Go.
You have to  wash your hands for a full 20 seconds to really get the bugs off, and yep that’s singing happy birthday twice. So let’s review it again, hand sanitizers if you can’t get to a sink, look for one with at least with 60% alcohol, but wash with soap, any kind is better as long as you wash for long enough.
Dr Richard Besser, ABC News, Maryland
作者: 微暖时光    时间: 2013-3-12 09:29

本[b]帖最后由 mintzoe 于 2013-2-19 16:44 编辑

In this season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent more than 170 million dollars on hand sanitizers alone. So we wondered what works best, and how does the sanitizers compare in a showdown with soap? Well tonight, our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean? As many as 400,000 germs per hand--that's how many bacteria travel with us everyday. So youth University Maryland Food Safety Lab, six brave grads students and I voluntarily dust our hands in a toxic brew of thousands of Ecoli bacteria. Yeah. Ecoli.
Good. Something now a little odd about rubbing Ecoli.
To see what would take it off. First step, hands sanitizers. We tested two kinds you'll find at the store: one with 60% of alcohol, and one so-called natural formula, containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.
Now let the air dry, OK?Then we pressed our hands on this special incubation plates to grow in your remaining bacteria. The results, dramatic. Here those green spots are the ecoli that grew from unwashed hands, after using hand sanitizers with 60% alcohol, but the formula without alcohol, just look how many germs are left behind. Alcohol based sanitizer worked so much better because alcohol breaks up the bacteria proteins and kills them. But if you really want to get a clean, what’s your best bet of them all?
Guess what? It’s your old friend, soap. Soap not only does well on bacteria as the sanitizers, it kills more viruses too. Surprisingly, studies show that regular and anti-bacteria soap are about equally effective. But how you use it is crucial, most of us only use it 5 seconds at the sink.
Stop.
Just look how many germs remain. Yuck.
Go.
You have to  wash your hands for a full 20 seconds to really get the bugs off, and yep that’s singing happy birthday twice. So let’s review it again, hand sanitizers if you can’t get to a sink, look for one with at least with 60% alcohol, but wash with soap, any kind is better as long as you wash for long enough.
Dr Richard Besser, ABC News, Maryland
作者: 微暖时光    时间: 2013-3-12 09:30

on mintzoe  

In this season of flu and so many other germs, we were told again and again that hand sanitizers and soap are the best defense. Last year, Americans spent more than 170 million dollars on hand sanitizers alone. So we wondered what works best, and how does the sanitizers compare in a showdown with soap? Well tonight, our chief medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean? As many as 400,000 germs per hand--that's how many bacteria travel with us everyday. So youth University Maryland Food Safety Lab, six brave grads students and I voluntarily dust our hands in a toxic brew of thousands of Ecoli bacteria. Yeah. Ecoli.
Good. Something now a little odd about rubbing Ecoli.
To see what would take it off. First step, hands sanitizers. We tested two kinds you'll find at the store: one with 60% of alcohol, and one so-called natural formula, containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.
Now let the air dry, OK?Then we pressed our hands on this special incubation plates to grow in your remaining bacteria. The results, dramatic. Here those green spots are the ecoli that grew from unwashed hands, after using hand sanitizers with 60% alcohol, but the formula without alcohol, just look how many germs are left behind. Alcohol based sanitizer worked so much better because alcohol breaks up the bacteria proteins and kills them. But if you really want to get a clean, what’s your best bet of them all?
Guess what? It’s your old friend, soap. Soap not only does well on bacteria as the sanitizers, it kills more viruses too. Surprisingly, studies show that regular and anti-bacteria soap are about equally effective. But how you use it is crucial, most of us only use it 5 seconds at the sink.
Stop.
Just look how many germs remain. Yuck.
Go.
You have to  wash your hands for a full 20 seconds to really get the bugs off, and yep that’s singing happy birthday twice. So let’s review it again, hand sanitizers if you can’t get to a sink, look for one with at least with 60% alcohol, but wash with soap, any kind is better as long as you wash for long enough.
Dr Richard Besser, ABC News, Maryland
作者: elenahaha    时间: 2013-3-19 10:41

本帖最后由 elenahaha 于 2013-3-19 10:49 编辑

on 14#

In this sean of flu and so many other germs, we are told again and again the hand sanitizers and soap are the best defense. Last year, Americans spend more than 170 million dollars on the hand sanitizers alone. So, we wonder what works the best, and how the sanitizers compared in a showdown with soap. Well, tonight we chief medical editor Dr. Rachel Bass puts them to test and get some real anwers.

Clean? As many as 400,000 germs per hand. That's how many bacterial travel with us everyday. "Here's a Lab" So Yale university Melin from safty lab. 6 brave graduate students tonight volunteerly dust the hands in a toxical brew, thousand of Ecoli bacterial (yeah). Ecoli? (good)

Something is now little odd about rubbing Ecoli. Yeah. To see what we will take off. First up, hand sanitizers. We test two kinds you find in this store. One with 60% of alcohol. And one socalled natural formula that containing no alcohol. OH, that's good. The key with hand sanitizers is to use enough of it. Your hands should take up full 15 seconds or longer to dry. Now let that airdry, ok? Then we press our hands onto special incubation plates to grow any remaining bacterial. The results dramatic. Here: those green spots are the Ecoli, they grow from unwashed hands. After, using hand sanitizers with 60% of alcohol, but the formula without alcohol? Just look at how many germs left behind. Alcohol-based hand sanitizer just works so much better because alcohol breaks up the bacterials proteins, and kills them. But if you will really want to get cleaned, what's your best of all. Guess what? It's your old friend : soap. Soap not only does it as well bacterial as sanitizer, it gets more viruses too. Surpprisingly, study show regular and the anti-bacterial soap are about equally effective. But how you use it is crucial. We go! Most of us only spend 5 seconds at the sink. Ding, Stop! just look at how many germs remain. Yack! Go! you have to wash your hands for 20 seconds to really get bugs off. And yes, that singing happy birthday twice. So, let's review again. Hand sanitizers if you can't get to a sink, look for one with at least 60% of alcohol, but wash with a soap any kind is better as long as you wash for long enough.

Dr.Richard Besser, ABC news, Collegue Park of Maryland.
作者: mengzhen1314520    时间: 2013-3-19 11:42     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In the season of flue, and so many other germs, we were told again and again that soap and hand sanitizer are the best defence. Last year, American spent more than 170 million dollars on hand sanitizers alone. So, we wondered what was the best and how does the hand sanitizers compare in the showdown with the soap. Well, tonight our cheif medical editor Dr. Richard Besser puts them to the test and gets some real answers.
Clean? As many as 400,000 germs per hand. That was how many bacteria travel with us everyday. So, here is the univrsity of ````lab, six brave ``` students and I voluntarily dust our hands in a toxic ```, thousands of ``` bacteria. Yeah, ```. Good, something a little odd about rubbing ```.
To see what would it take off. First step, hand sanitizers. We tested two kinds u'll find at store: one with 60% alcohol, and one so called natural formula containing no alcohol. The key with the hand sanitizers is to use the ```.  Hand should take a full 15 sec or longer to dry.
Now let the air dry, ok?
Then we press our hands onto some special ``` plates to grow any remaining bacteria. The reasults? Dramatic. Here, those green spots are the ``` that grew from unwashed hands. After, using hand sanitizers with 60% alcohol. But the formula without alcohol? Just look how many germs left behand. Alohol based sanitizers work so much better coz alcohol breaks up the bacteria's protein and kills them. But if u really want to get clean, what's the best of all, guess what, it's yr old friend - soap. Soap not only does well on bacteria as the sanitizer, it gets more viruses too. Supringly, study shows regular and anti-bacteria soap are about equally effective. But how u use it is crucial.
Go.
Most of us only spend 5 sec at the sink.
Stop. Just look how many germs remained.Yak.
Go.
U have to wash yr hands for full 20 sec to really get the bugs off. And yeah, that's singing happy birthday twice.
So let's rebuild again. Hand sanitizers if u can't get to a sink, look for one at least 60% alcohol, but washing with soap any kind i better as long as u wash for long enough.
Dr. Richard Besser BBC news, ```




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作者: SeiCi10-04_1    时间: 2013-3-19 17:15     标题: [Homework]2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

in the season of flu and some many other germs, we were told again and again that hand sanitizer and soap are the best defence. last year, america spent more than 170 million dollars on the hand sanitizers alone. so we wondered what works best  and how the sanitizers compare in a  showdown with soap. well, tonight,  our chief medical editor Dr. Richard Besser puts them into test and gets some real answers.

clean? as many as 400,000 germs per hand. that's how many bacteria travel with  us every day. so youth university Miriland from secure lab. 6 brave graduate students and I voluntarily dust hands in the toxic brew, the thousands of E.coli. Yeap, E.coli, to see what we take it off. first up, hand satinizers, we test two kinds we find in the store,  one with 60% alcohol, and one so called natural formula containing no alcohol. the key with hand sanitizers is to use ? . your hands  should take 415 second longer to dry. (air dry, OK?) then we press our hands onto special individual space to grow  bacteria . results dramatic!

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作者: 张悦钦    时间: 2013-3-31 20:46

Homework
In this season of flu and so many other germs, we’re told again and again that hand sanitizers and soap are the best defense. Last year, American spent more than 170 million dollars on hand sanitizers alone. So we wandered what works best and how do the sanitizers compare in the showdown with soap? Well tonight our key medical editor doctor Richard Besser puts them to the test and gets some real answers. Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So here at the University of Maryland food safety lab, 6 brave grad students and I voluntarily dust our hands in a toxic brew, thousands of E. coil bacteria. Yeah, E. Coil.“Good? Something a little odd about rubbing e-coil.” To see what would take it off. First up, hand sanitizers. We tested two kinds you’ll find at the store: one with 60% alcohol, and one so-called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.“Now let that air dry, ok?”Then we pressed our hands onto special incubation plates to grow any remaining bacteria. The result? Dramatic. Here, those green spots are the e-coil that grew from unwashed hands. After, using hand sanitizer with 60% alcohol. But the formula without alcohol? Just look how many germs are left behind.Alcohol-based sanitizers work so much better because alcohol breaks up the bacteria’s proteins and kills them. But if you really want to get clean, what’s your best of all? Guess what? It’s your old friend, soap. Soap not only does as well on bacteria as the sanitizer, it gets more viruses too. Surprisingly, studies show regular and antibacterial soap are about equally effective. But how you use it is crucial. “Go!”Most of us only spend five seconds at the sink.“Stop!”Just look how many germs remain. Yuk!“Go!”You have to wash your hands for a full twenty seconds to really get the bugs off. And yeah, that’s singing Happy Birthday twice. So let’s review it again. Hand sanitizers if you can get to a sink. Look for one with at least 60% alcohol, but washing with soap, any kind, is better, as long as you wash for long enough.Dr. Richard Besser, ABC News, College Park, Maryland.
作者: dollyhuang    时间: 2013-4-1 14:19

HW:
In the season of flu and so many other germs, we are told again and again that hand sanitizers and soap are the best defense. Last year Americans spent more than 170 million dollars on hand sanitizers alone. So, we wondered what works the best and how do the sanitizers compare a showdown with soap. Well, tonight our chief medical editor doctor Richard Besser puts them to test and get some real answers.

Clean? As many as 400,000 germs per hand, that’s how many bacteria travel with us every day. So here at the University of Maryland food safety lab, six brave graduate students and I voluntarily dust our hands in a toxic brew, thousands of E.coil bacteria. Yeah, E-coil.

Something odd about rubbing E.coil? To see what it would take off.

First up, hand sanitizers. We tested two kinds you’ll find at the store, one with 60% alcohol and one so-called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry.

Now let that air dry, ok?

Then, we pressed our hands onto special incubation plates to grow any remaining bacteria. The result? Dramatic. Here, those green spots are the E.coil that grew from unwashed hands. After, use hand sanitizers with 60% alcohol. But the formula without alcohol? Just look how many germs left behind.

Alcohol-based sanitizers work so much better, because alcohol breaks up the bacteria’s proteins and kills them. But if you really want to get clean? What’s your best of all? Guess what? It’s old friend, soap. Soap not only does well on the bacteria as the sanitizers, it gets more virus, too. Surprisingly, studies show regular and anti-bacteria soap are about equally effective. But how you use it is crucial. Most of us only spend 5 seconds at the sink. Just look how many germs remained. Yuk! You have to wash a full 20 seconds to really get the bugs off. And yes, that’s singing happy birthday twice.

So, let’s review it again. Hand sanitizers if you can get to s sink, look for one with at least 60% alcohol, but wash with soap anytime is better as long as you wash for long enough.
Doctor Richard Besser, ABC News, College Park, Maryland.
作者: foreverleeh    时间: 2013-4-4 20:35     标题: [Homework]【整理】2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In this season of flue and so many other germs, we are told again and again that hand sanitizer and soap are the best defence. Last year Americans spent more than $170,000,000 on hand sanitizers alone. So we wondered what works best and how do the hand sanitizers compare a showdown with soap. Well, tonight our chief medical editor Dr. R puts them to the test and get some real answers.

clean. as many as 400,000 germs per hand. That's how many bacterias travel with us everyday. So here at the University of Maryland food safety lab, six brave graduate students and I voluntarily dust our hands in a toxic brew of thousands of E coil bacteria. Yep, E coil.
good? something a little odd about rubbing E coil
to see what would take it off.
first step, hand sanitizers. we tested two kinds of you will find in a store. One with 60% alcohol, and one so-called natural formula containing no alcohol. The key with hand sanitizer is to use enough of it. Your hands should take a full 15 seconds or longer to dry.
Now let that air dry, OK?
Then we pressed our hands onto special plates to grow remaining bacteria. The results, dramatic. Here, those green spots are the E coil, they grew from unwashed hands. After, using hand sanitizer with 60% alcohol, But the formula without alcohol, just look how many germs are left behind. Alcohol based hand sanitizer works so much better, because alcohol break up the bacteria's proteins and it kills them. But if you really want to get clean, what's your best of all? Guess what, IT's your old friend, soap. Soap not only does it well on bacteria as the hand sanitizer, it gets more viruses too. Surprising! Study show regular and anti-bacteria soap are about equally effective. But how you use it is crucial.
go. Most of us only spend five seconds of the sink. Stop. Just look how many germs remain.yuck!
go. You have to wash your hands for a full 20 seconds to really get the bugs off. and yes, that's singging Happy Birthday twice. So let's review again. hands sanitizers if you can get to a sink. Look for one with at least 60% alcohol, But washing with soap, any kind is better as long as you wash for long enough.


Dr. R. ABC news.













This post was generated by put listening repetition system,  Check the original dictation thread!
作者: jessica12111    时间: 2017-11-16 12:09

我下载这个视频为什么没有视频只有音频啊。P.S.我下载的是REAL
作者: 冯娇娇111    时间: 2017-11-17 20:00

hdaodkjrjrjjrksjxn
作者: 莳萝泡菜    时间: 2020-1-30 13:47     标题: [Homework]【整理】2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In the season of flu and so many other germs we will told again and again hand sanitizers and soap are the best defence. Last year American spent more than 170 million dollars on hand sanitizers alone. So we wondered what was the best and how do the sanitizers compared with the show down with soap, we tonight our chief medical editor doctor puts them to the tests and gets some real enters. Queen? As many as 400 million germs perhen, that is how many bacteria travel with it every day. so you are the university of maryland from lab six brave grad students are voluntarily dust their hands in a toxic brew,thousands of Ecoli bacteria, Ecoli, something now are a little odd about rubbing Ecoli. to see what we take it off. First up hand sanitizers we tested two kinds you will find in the store. One was 16 percent alcohol and one so called natural formula containing no alcohol. The key with hand sanitizers is to use enough of it your hands should take a full 15 seconds longer to dry. Now let there air dry then we press our hands onto special incubation place ,growing in a remaining bacteria the result dramatic,those green spots are equal ibek crew from unwashed hand. After using hand sanitizers with 16 percent alcohol formula with all the alcohol just look how many gems are left behind. Alcohol based hand sanitizers work so much better because alcohol break the bacteria's protein and kills them. But if you willing want to get clean what you best of all. Guess what? It is your old friend soap so not only does it is well on bectria as the sanitizier it is gets more virius too. Surprisingly study show regular and antibactieria soap are about equally effective. But how you use it is crucial.most of us only spend 5 second in the sink, just look how many gems remain. You have to wash your hands for a full 20 seconds to really get the bugs off. And yes that singing happy birthday twice. So lets review it again. Hands sanitizers are begin to get your sink look for one with at least 16 percent alcohol watching with soap any kind is better, as long as you wash long enough.                                                   
This post was generated by put listening repetition system,  Check the original dictation thread!
作者: 李嘉琳    时间: 2020-1-30 14:54     标题: [Homework]【整理】2013-02-14&02-17 如何洗手最干净?洗手液-肥皂杀菌效果大对决

In this season of flu, and so many other germs were told again and again that hand, sanitizer and soap are the best offense. Last year, Americans spent more than 170 million dollars on hand sanitizer is alone, so we wondered what works best and how did the sanitizer comparing a showdown with soap. Well, tonight our chief medical editor, doctor Richard, better put them to the test and get some real answers. As many as 400000 for and that's how many bacteria travel with us every day. The university of Maryland from 6 gard students and I voluntarily gas her hand in a toxic brew thousands of ecoil bacteria. Yep, ecoil. To see what we take it off. First up, hand sanitizers, we get it two kinds you find at the store, one with 60 percent alcohol, and one so-called natural formula containing no alcohol. The key withhand sanitizers is to use enough of it. Your hands should take a full 15 seconds or longer to dry. Now let that air dry ok? Then, we pressed our hands on a special inclubation plates, to grow any remaining bacteria. The results, dramatic. Here, those green spots are like unwashed hands. After, using hand sanitizer with 60 percent alcohol, but  the with all alcohol, just look at how many germs are left behind. Alcohol based hand, it work so much better because alcohol breaks up the bacteria proteins and kills them. But if you really want to get clean, what's your best bit of all? Guess what, it's your old friend,so not only does as well as the sanitizer, it gets more viruses too. Surprisingly, study show regular and about equally effective, but how you use it is crucial. Most of us only spend five seconds at the sink. Just look how many germs remain. You have to wash your hands for a full twenty seconds to really get the bugs off and yeah, that's singing happy birthday twice. So let's review it again. Hand sanitizer if you can get to a sink. Look for one with at least 60 percent alcohol, but washing with soap, any kind is better. As long as you wash for long enough. Dr. Richard Besser ABC News, college park Maryland.
This post was generated by put listening repetition system,  Check the original dictation thread!




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