Thus, fever would make it more difficult for an infecting bacterium to acquire iron and thus to multiply.
因此，发烧会使感染细菌更难获得铁，从而更难繁殖。
Colds mutate even while they're infecting you, and new strains pop up so often that by the time drug-makers create a vaccine against one variation, the serum is already out of date.
即使在感染你的时候，感冒病毒也会发生变异，而且新的病毒毒株经常出现，以至于当制药商研制出针对其中一种变异的疫苗时，血清已经过时了。
This one seems to be infecting more young people.
而这次流感的受害者似乎更多的是年轻人。
Every time you cough you may be infecting others with germs.
你每次咳嗽可能都在把病菌传染给别人。
False-negatives mean that people take no precautions to prevent infecting others.
假阴性则意味着人们将不会采取任何预防措施防止将疾病传染给他人。
The reason flu keeps infecting us again and again is that the virus is constantly changing.
流感能够反复感染我们的原因在于病毒的不断变化。
By the end of 2007, the weakness of the American housing market was infecting sales of cars.
2007年底，美国房地产市场的疲软影响了汽车的销售。
Even before swine flu emerged, sick Japanese donned surgical masks to avoid infecting others.
即使在猪流感爆发前，患病的日本人戴上外科手术口罩来避免传染其他人。
Of the emerging pathogens capable of infecting humans, around 75% originated as diseases of animals.
在有能力感染人类的新出现的病原体中，大约75%来自动物身上的疾病。
In each case, the infecting organism USES the host body to live and grow, and is often restricted to a particular organ.
每一种情况中，感染生物都用寄主的身体来生存和生长，经常集中于一个特定器官。
Once on someone's hands, they stand a good chance of infecting them, since it is human nature to frequently touch our faces.
人手一旦接触上这些细菌，便有很大机会被感染，因为人手经常会自然地触碰脸面。
Many apes and monkeys carry their own strain of S.I.V, but it's not clear how long the viruses have been infecting primates.
很多猩猩和猴子都带有自己的SIV毒株，但病毒感染灵长类多久了一直不清楚。
A recent study conducted in Rwanda and Uganda showed that HIV positive mothers may breastfeed without infecting their infants.
最近在卢旺达和乌干达进行的研究表明，感染了艾滋病病毒的母亲可以哺乳而不把病毒传染给她们的婴儿。
Scientists are investigating, on a molecular level, how the virus might mutate to become capable of infecting people more easily.
科学家们这正在研究禽流感病毒变得更容易使人感染的分子机理。
The programme passed but by then America's mortgage crisis had become a global panic, dragging down Banks and infecting all sorts of debt.
当计划通过时，美国的次贷危机已经演化成全球恐慌，不仅把银行拉下水，也拖累了各种债务。
Flu pandemics occur every 30–70 years, as newly evolved flu viruses sweep across entire world regions infecting enormous numbers of people.
流感的大流行30-70年爆发一次，新变异的病毒将会席卷全世界。
And when scientists looked at the strain infecting the chimps, they found that it was a close relative of the virus that first infected humans.
当科学家们研究感染黑猩猩的病毒菌株时，他们发现这是与首先感染人类的病毒所密切相关的一种病毒。
This virus was different because it moved directly from chickens to people, rather than having been altered by infecting pigs as an intermediate host.
这种病毒之所以不同，是因为它并没有通过传染猪，使猪成为中间宿主，而是直接由鸡传染给人类。
Manuka honey interferes with bacteria infecting a wound by keeping the microbes from attaching to tissue and even by making antibiotics more effective.
麦卢卡蜂蜜能够干扰细菌对伤口的感染，因为这种蜂蜜不但能够组织细菌粘附在伤口的组织上，也能让抗生素的使用效果更好。
They now believe that all the S.I.V. strains infecting monkeys and apes across Africa diverged from a common ancestor between 32,000 and 78,000 years ago.
可以确信所有感染了非洲的猴类和类人猿种族的SIV变种都有一个祖先，它在距今在32000年到78000年之前就存在了。
Our studies help us to understand the makeup of the mosquitoes that transmit malaria, so that we can find new ways of preventing them from infecting people.
我们的研究帮助我们明白了传播疟疾的蚊子的构成，所以我们可以找到新的阻止它们感染人群的方法。
H5N1 appears to have expanded its host range, infecting and killing mammalian species previously considered resistant to infection with avian influenza viruses.
H5N1病毒似乎扩大了宿主范围，导致以往被视为对禽流感病毒具有抵抗力的哺乳类动物的感染和死亡。
It is also possible that H5N1 has already passed back and forth between birds and other animals, picking up mutations and becoming better at infecting mammals.
H5N1在鸟类和其他动物之间来回传播获得突变而变得更容易感染哺乳动物也是可能的。
Professor Cooper's group is helping to solve this problem by investigating at a molecular level the ways in which manuka honey inhibits wound-infecting bacteria.
Cooper教授的小组通过在分子水平上研究麦卢卡蜂蜜如何抑制感染伤口的细菌来帮助解决这个问题。
Professor Cooper's group is helping to solve this problem by investigating at a molecular level the ways in which manuka honey inhibits wound-infecting bacteria.
Cooper教授的小组通过在分子水平上研究麦卢卡蜂蜜如何抑制感染伤口的细菌来帮助解决这个问题。
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