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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Cause of Farmer's lung-
assistant
The correct answer is  - farmers lungs is due to the inhalation of mouldy or hay grain dust. - micropolyspora faeni is the main cause of farmer's lung. - repeated attacks cause pulmonary fibrosis, inevitable pulmonary damage and cor pulmonale. Reference: Park's textbook of preventive and social medicine, 23rd edition, pg no:807 <\p>