Higher order taxa
Viruses; ssDNA viruses; Circoviridae; Circovirus
Beak and feather disease virus, Canary circovirus, Goose circovirus
Description and Significance
Circoviruses are very small non-enveloped icosahedral viruses with a single stranded circular DNA genome. They have been described in pigs (porcine circovirus, PCV), chickens (chicken anemia virua, ChAV), psittacines (psittacine beak and feather disease virus, PBFD) and pigeons.