Farmer lung

Definition

Farmer's lung disease is a hypersensitivity pneumonitis, caused by inhalation of organic dust containing spores of microorganisms, often thermophilic actinomycetes and less commonly Saccharopolyspora rectivirgula, living in mouldy hay, straw, or grain. Typical symptoms include dyspnoea, cough, tiredness, headaches and occasional fever/night sweats, with acute, sub-acute or chronic clinical course and can result in chronic disability with granulomatous disease.

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