Medical Definition of Calicivirus
Calicivirus: A group of viruses belonging to the family Caliciviridae that includes:
The hepatitis E virus, once considered a calicivirus, now belongs to an unassigned (or floating) genus called the hepatitis E-like viruses.
All of the caliciviruses are single-stranded RNA, nonenveloped viruses. Their genetic information is encoded in a single strand of RNA and they lack an envelope. The name calicivirus comes from their characteristic "Star of David" shape with cup-shaped (chalice) indentations.
Last Editorial Review: 6/9/2016
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