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How are bacteria economically important to humans?
细菌在经济上对人类有多重要？
You may not think about bacteria very often, but they play a vital role in our lives.
你可能不会经常想到细菌，但它们在我们的生活中起着至关重要的作用。
Without bacteria, you and lots of other things would be in big trouble.
如果没有细菌，你和其他很多事情都会遇到大麻烦。
How can bacteria be good?
细菌怎么可能是好的呢？
Penicillin is good for you.
青霉素对你有好处。
It's some care for some deadly illness.
能够治疗某些致命疾病。
I believe yoghurt is actually a byproduct of bacteria.
我认为酸奶实际上是细菌的副产品。
It's actually what is created by certain bacteria.
它实际上是由某些细菌产生的。
Decomposition you know of like animals, animals decay.
腐烂，像动物一样腐烂。
Because of bacteria eats them.
因为细菌会吃掉它们。
Good bacteria like in your stomach, they break down food.
像你胃里的那些好细菌，它们分解食物。
Most of them are in our digestive tract and they help us digest food.
它们大多在我们的消化道中，帮助我们消化食物。
It breaks down stuff that you know your body would normally wouldn't be able to break down.
它能分解你身体通常无法分解的东西。
One way to study antibiotic resistance is to go where antibiotic use is highest.
抗生素的使用是抗生素耐药性最重要的研究方向之一。
In Wisconsin, nurses Priscilla Goltz and Jane Stofflet are collecting samples of, well, the material produced by runny noses.
在威斯康星州，护士普里西拉·戈尔茨和简·斯托夫莱特正在收集流鼻涕产生的物质样本。
It's part of a study for the Centers for Disease Control.
这是疾病控制中心研究的一部分。
The rate of resistant pneumococcus in some Wisconsin daycare settings is over 40%.
在威斯康星州的一些托儿所，抗药性肺炎球菌的比率超过40%。
The nurses will return in a year and retest the children to monitor the trend.
护士们将在一年后回来，对孩子们进行重新测试，以监测这一趋势。
Daycare centers are often seen as one of the wonderful breeding grounds of new and novel resistant organisms.
托儿所通常被视为新抗药性生物的繁殖地之一。
In many large daycare centers there may be as many as 30% or 40% of children on an antibiotic in any given time.
在许多大型日托中心，在任何给定的时间内，可能有多达30%或40%的儿童使用抗生素。
And so that an organism that is a good colonize
因此，日托中心是一个有机体很好的聚集地，
that has a tremendous opportunity in a daycare center to colonize lots of children and eventually to cause disease.
有巨大的机会聚集在儿童身上，最终导致疾病。
Particularly if it's resistant to one or two or three antibiotics.
尤其是对一种、两种或三种抗生素有耐药性的话。
Millions of children take antibiotics to cure ear infections or to prevent them.
数以百万计的儿童服用抗生素治疗或预防耳部感染。
