Human alphaherpesvirus 3, the infectious agent that causes chickenpox (varicella) and shingles.

Pegivirus C, an RNA Pegivirus that infects humans, though not known to cause human disease; coinfection seems to slow the progression of HIV disease

A cypovirus.

(virology) Human gammaherpesvirus 4, a human herpesvirus of the herpes family and the cause of infectious mononucleosis.

(virology) A species of retrovirus that causes persistent infections in several species of African non-human primates.

(virology) One of the five known hepatitis viruses, the cause of hepatitis D.

Synonym of Marburg disease

A viral disease of bees, causing the queen larva to turn black and die.

A retrovirus that infects certain dolphins.

Alternative form of chronic bee paralysis virus