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。

youdao

The chemical also kills s. aureus biofilms, which are a common cause of infection on implanted catheters and other medical devices and are notoriously resistant to the actions of antibiotics.

这种化学物质也能杀死金黄色葡萄球菌，金黄色葡萄球菌主要导致医疗器械所引起的感染，同时对于抗生素具有很强的抗性。

youdao

Once the infection - caused by one of the bacteria most often resistant to antibiotics - had been diagnosed, doctors put him on five different antibiotics.

一经诊断为感染(由对抗生素产生耐药性的最常见细菌之一造成的)，医生立即使用了五种不同的抗生素对他进行治疗。

youdao

The other advantages of hair sheep include that it's more resistant to parasites, so they're less prone to infection."

VOA: special.2009.08.03

It can also improve heart function and make the body resistant to infection.

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There is another route being considered - involving a rare mutation that leaves people resistant to HIV infection.

BBC: Analysis: A cure for HIV?

This suggests that those people with an aberrant form of the protein (the result of the defective gene) might be more resistant to herpes infection than their fellows.

ECONOMIST: Cleft palate and herpes