These could be signs of meningitis, a potentially life-threatening infection.

这些症状可能是脑膜炎的前兆，有潜在的生命危险。

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But health agencies say the side effects cannot expand into a life-threatening infection.

但卫生机构说这副作用不会扩大成危及生命的感染。

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In rare cases, a physician may stop a transplant recipient's immunosuppressive drugs because of a serious medical problem such as cancer or life-threatening infection.

在少数情况下，医生可能会因为严重的医学问题比如肿瘤或致命感染而让移植受者停用免疫抑制药物。

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And presenting with that actually life-threatening infection to the hospital, usually in an extreme state."

VOA: standard.2009.11.15

Infectious disease experts consider them to be an antibiotic of last resort, to be prescribed only when first-line antibiotics such as penicillin fail to work, or in cases of extreme, life-threatening infection, or for certain bacteria known to respond best to quinolones.

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But the drug ran into trouble: it was pulled soon after entering the U.S. market six years ago, when a few patients using the drug developed a life-threatening brain infection.

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For certain heart conditions, antibiotics are recommended about one hour before invasive medical procedures to prevent a condition called infective endocarditis, which is a potentially life-threatening bacterial infection of the inner lining or valve within the heart.

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