life-threatening infection

基本解释

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。
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。
Call your doctor for advice if your child has neck stiffness or a rash with a fever. These could be signs of meningitis, a potentially life-threatening infection.
若你的孩子出现颈项强直或发烧起疹子，你就要去找医生帮忙。这些症状可能是脑膜炎的前兆，有潜在的生命危险。

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

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.
FORBES: Is Biogen A Bad Bet Or A Bargain?