名词
中文翻译：感染
同义词：
['infectious disease', 'contagion例句：1. He was diagnosed with the flu and required hospitalization for treatment.（他被诊断出患有流感，需要住院治疗。）']
例句：
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1. He was diagnosed with the flu and required hospitalization for treatment.
他被诊断出患有流感，需要住院治疗。
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2.The infection spread rapidly throughout the community.
这种感染迅速在整个社区传播。
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3. Doctors are trying to develop a vaccine against this new virus.
医生们正在努力开发一种针对这种新病毒的疫苗。