a novel dna virus associated with feather inclusions in psittacine beak and feather disease.the nature of feather inclusions was characterized in 32 psittacine birds (30 cockatoos, one peach-faced lovebird (agapornis roseicollis), and one red-lored amazon parrot (amazona autumnalis autumnalis] with naturally-acquired psittacine beak and feather disease. intranuclear inclusions within feather epithelial cells and intracytoplasmic inclusions within macrophages in the feather epithelium and pulp cavity contained psittacine beak and feather disease viral antigen when stained by the avidin- ...19911949509
ultrastructural, protein composition, and antigenic comparison of psittacine beak and feather disease virus purified from four genera of psittacine birds.psittacine beak and feather disease (pbfd) virus, was purified from diseased tissues of a lesser sulphur-crested cockatoo (cacatua sulphurea), a black palm cockatoo (probosiger aterrimus), a red-lored amazon parrot (amazona autumnalis), and a peach-faced lovebird (agapornis roseicollis). the histopathology of diseased feathers and follicular epithelium from the different species was compared; basophilic intranuclear inclusion bodies were identified in the follicular epithelium and intracytoplasm ...19902338723
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