Porcine Torovirus (PToV) is widely distributed in the world with high prevalence rate in swinery. Due to the high detection rate in diarrhea pigs, PToV is thought to be a potential pathogen of swine diarrhea. In recent years, epidemic outbreaks of diarrhea with high morbidity and mortality in China have caused great economic losses. Intertypic recombination events and antigenic cross-reactivity among toroviruses implies potential zoonotic transmission of PToV. The review represented the development history of PToV and made a brief summary of the features in genome and protein epidemiology and laboratory diagnosis of the PToV, and so on.
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