Sydney strain of Norovirus [VIDEO] spreads, Noroviruses are the leading cause of epidemic gastroenteritis,
including foodborne outbreaks, in the United States. Hospitalization and
mortality associated with norovirus infection occur most frequently
among elderly persons, young children, and immunocompromised patients.
Noroviruses
belong to the family Caliciviridae and can be grouped into five
genogroups (GI through GV), which are further divided into at least 34
genotypes. Human disease primarily is caused by GI and GII noroviruses,
with most outbreaks caused by GII.4 strains. Go here to read more and see the video.
