title: Lung disease in farmers.
abstract: Lung diseases in farmers attributable to their occupation include (a) farmer's lung, caused by exposure to mouldy hay, (b) the asthma caused by exposure to grain dust and (c) silo-filler's disease. Their prevalence in Canada is unknown. Farmer's lung results from inhalation of mould spores in hay; the mechanism is immunologic. The exact cause and mechanism of grain dust asthma are unknown but may be immunologic. Silo-filler's disease is caused by the toxic effects of inhaled nitrogen dioxide.
mesh_terms: D000208:Acute Disease; D001249:Asthma / Q000209:etiology; D002908:Chronic Disease; D004391:Dust; D002523:Edible Grain; D005203:Farmer's Lung / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D012832:Silo Filler's Disease / Q000175:diagnosis
chemical_list: D004391:Dust