[A case of bird fanciers' disease caused by parrot droppings]

A 50-year-old woman who had been treated for Parkinson's disease was admitted to our hospital because of exertional dyspnea and weight loss. Her chest computed tomography showed diffuse ground glass opacities in both lung fields. Bronchofiberscopy was performed, and the bronchoalveolar lavage fluid showed an elevated lymphocyte count. The serum Ouchterlony test yielded positive results for parrot droppings as well as for pigeon serum and droppings. She had had a parrot for several years, but no pigeon, and so we diagnosed bird fanciers' disease associated with parrot droppings. This responded well to steroid therapy. This case of bird fanciers' disease was caused by the droppings of only one parrot.