Sapovirus

Sapoviruses are caliciviruses that together with the Norwalk virus, are the most common cause of acute viral gastroenteritis in adults. The type species is Sapporo virus and it is named after Sapporo, Japan where the virus was first discovered following an outbreak of gastroenteritis in an orphanage. Unlike norovirus, this virus generally only causes mild gastroenteritis in young children.

Taxonomy
Sapovirus are currently classified into seven genogroups (GI to GVII) based on the complete sequence of capsid. GI, GII, GIV and GV are known to infect humans

Animal viruses
Sapoviruses have been identified in bats, California sea lions, dogs, pigs and mink.