Gaurav Rawal

1. Introduction Astroviruses are emerging viruses in the family Astroviridae, which is divided into two genera: Avastrovirus andMamastrovirus[1]. Astroviruses are non-enveloped, 28–30 nm positive-sense, single stranded RNA viruses [2] that can cause disease and be detected in the feces from a wide variety of mammals and birds [3–9].Porcine astroviruses (PoAstVs) are genetically diverse ...