It has been not known the disease origins, pathogenesis, transmission mechanisms and mode.
它的起源、发病机理、传播机制和途径尚不清楚。
AIM: to investigate the pathogeny, transmission route, clinical symptom and the pathogenesis of a family cluster non bacterial diarrhea.
目的：调查一起家庭聚集性非菌性腹泻病原、传播途径、临床表现以及病原学特性。
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