单词	primary atypical pneumonia
释义	primary atypical pneumonia noun : any of a group of pneumonias (such as Q fever and psittacosis) caused especially by a virus, mycoplasma, rickettsia, or chlamydia Word History First Known Use circa 1944, in the meaning defined above Medical Definition primary atypical pneumonia noun : any of a group of pneumonias (as Q fever and psittacosis) caused especially by a virus, mycoplasma, rickettsia, or chlamydia
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