名词
中文翻译：被动感染
同义词：
['passive infection', 'asymptomatic infection', 'latent infection']
例句：
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1. The patient was diagnosed with a passive infection after testing positive for the virus.
这名患者经过病毒检测呈阳性后被诊断为患有被动感染。
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2.The researcher found that many people were infected with the virus without showing any symptoms, indicating a passive infection.
研究人员发现，许多人在没有出现任何症状的情况下被病毒感染，这表明他们患有被动感染。
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3. The hospital reported an outbreak of passive infection among its staff, prompting an investigation into the source of theinfection.
医院报告称其员工中发生了一场被动感染的疫情，引发了对感染来源的调查。