Species H Rotavirus Detected in Piglets with Diarrhea, Brazil, 2012

摘要

Rotaviruses (RVs) form a genus of the family Reoviridae and are a common cause of viral gastroenteritis in humans and animals (1). The RV genome consists of 11 segments of double-stranded RNA that encode 6 structural viral protein (VP1–4, VP6, and VP7) and 6 nonstructural proteins (NSP1–6) (1). RVs have been classified into 7 species, which are also known as groups, termed A–G, on the basis of the antigenicity and genetic characteristics of VP6 (2,3). Rotavirus A (RVA) infections cause severe diarrhea in infants and young children worldwide but can also infect adults, other mammals, and birds (1). Rotavirus B (RVB) infections were first associated with severe diarrhea in adults (4) and have also been detected in cattle, pigs, sheep, and rats (5–7).