Circovírus e poliomavírus de psitacídeos – revisão de literatura

Abstract

The circovirus (BFDV) and the avian polyomavirus (APV) are common viral agents that threaten parrots in captivity. The first APV infection in birds has been described in young Australian budgerigars (Melopsittacus undulatus), being since associated with high mortality and morbidity in other psittacines. The BFDV is the causative agent of beak and feathers disease, which occurs almost exclusively in psittacines, birds from the order Psittaciformes, especially in aviaries, quarantine facilities and pet stores. Both diseases cause feather alterations, nonspecific clinical signs and sudden death. The similarity of the clinical presentation of these agents makes it difficult to obtain a diagnosis without laboratory results. This paper reviews the literature on these viroses and compares both diseases.