Bird fancier's disease due to exposure to birds via a desert cooler

Hypersensitivity pneumonitis [HP] is an immunologically mediated pulmonary disease caused by various organic particles and some non organic chemicals. HP is mostly associated with some occupations such as farming and bird breeding. We report a case of hypersensitivity pneumonitis in a housewife without any prior history of occupational exposures. The disease was developed due to indirect exposure of the patient to doves antigens via a desert cooler ducts