PBFD
PSITTACINE BEAK AND FEATHER DISEASE
(Psittacine Circovirus Disease)
Psittacine beak and feather disease (PBFD) is a viral disease that can affect all psittacine birds (Parrots, Cockatoos, Macaws African Grey Parrots, Ringneck parakeets, Eclectus Parrots, Lovebirds and Lorikeets) and possibly, Doves.
The virus attacks the cells of the immune system and those which produce feather and beak. Affected birds gradually lose their feathers and develop beak abnormalities. Because the virus attacks the immune system, affected birds succumb to infection by other diseases.
The virus that causes PBFD can also affect the liver, brain, and immune system causing diminished resistance to infections. Consequently premature death usually occurs from these secondary bacterial, fungal, parasitic, or viral infections.
The disease occurs in captive and wild birds and probably originated from Australia, for it is now found in psittacine birds in Europe and America.