Dr Barr wondered if they were actively working with their hosts to keep down the level of pathogenic bugs that might otherwise set up shop in the hosts' mucus membranes.

Barr博士觉得噬菌体以帮助寄主降低致病菌的数量，防止病菌将在寄主的粘膜液中大量繁殖。

It is best to store several gallons of water per person. It is also important to have something that can clean water and kill bacteria, so water from other sources can be made safe to drink.

最好每人储备几加仑水。储备一些以净化水和消灭病菌的东西也很重要，这样就以安全地饮用其他来源的水了。

In fact, you may have heard about the new super-bugs which are antibiotic-resistant bacteria that have developed as a result of over-prescribed antibiotics.

事实上，你能听说过一种对抗生素所免疫的超级病菌，它是过度使用抗生素的结果。

It involves an imbalance in the microbes that grow in the vagina, with pathogenic strains beating out healthier bacteria.

这涉阴道内微生物的失衡，致病菌株战胜了更健康的细菌。

As it can coat them in nasty bacteria that can then be transferred to others.

因为会让双手沾满肮脏的病菌，之后还会将病菌扩散给他人。

The U.S. Centers for Disease Control says the current outbreaks are linked to people who traveled to other countries and brought the measles back with them.

美国疾病控制中心说，目前的疫情前往其他国家并带回麻疹病菌的人有很大关系。

Right now I'm not staying at home. My wife is at home. I do recognize that I'm around sick people a lot but I don't want to bring anything home.

目前我没有住在家里。我妻子在家，我知道我身边都是病人，我不想带着任何病菌回家。

Poor oral hygiene can increase colonisation with pathogens such as S. aureus or P. aeruginosa that can be aspirated into the lower airway, thus increasing the risk of pneumonia.

不良的口腔卫生会增加致病菌的定植，如金黄色葡萄球菌、铜绿假单胞菌等；这些致病菌会被吸入下呼吸道，从而增加罹患肺炎的风险。

The reason your doctor tells you to finish the entire bottle of antibiotics is if you shorten your dose, you will not kill all of the bugs.

医生让你用掉整瓶抗生素的原因是，如果剂量不足，病菌不能全部消灭。

But that could give Rob an eye infection!

是这样能会导致罗柏的眼睛感染病菌！

The most common ones are viruses or bacteria.

最常见的是病毒病菌。

And infection may be spread through flies contaminated with a patient's feces or leakage from sewage contaminated with the bacteria that infiltrates drinking water or contaminate foods.

感染能通过被患者粪便感染的苍蝇传播，被病菌感染的饮用水和食物传播。

Superbugs are appearing much more often outside of hospitals, the CDC report said.

疾控中心的报告说，超级病菌在医院外出现的频率要高得多。

He judged that the disease had already attacked the vocal chords.

他估计病菌已经侵袭了病人的声带了。

The two germs are also drastically different in size.

这两种病菌的大小也大不相同。

If you never coughed, you wouldn't be spreading germs and diseases to other people.

如果你从不咳嗽，你就不会把病菌和疾病传播给他人。

To keep infections from spreading, physicians try to always wash their hands between exams.

为了防止病菌感染，医生们总是在体检间隙频繁洗手。

We recommend the book " Guns, Germs, and Steel" by Jared Diamond.

我们推荐这本书，Jared Diamond着" 枪炮、病菌钢铁" 。

That distancing usually helps to slow down the spread of a pathogen.

这种距离通常有助于减缓病菌的传播。

This can help prevent the germs from spreading.

这样以防止病菌传播。