Serositis in two black-capped conures (Pyrrhura rupicola): A possible viral cause

Three young black-capped parakeets (Pyrrhura rupicola) died after developing clinical signs of lethargy, inappetence, and progressive abdominal distension. Abdominal fluid was present in two birds at necropsy, and serositis was confirmed in one bird by histologic examination of tissue samples. Viral culture of tissue samples submitted from one bird revealed viruslike particles. These particles had a similar morphology and cytopathic effect to a viruslike particle that had been previously recovered from birds with confirmed proventricular dilatation syndrome.