Farmer’s Hypersensitivity Pneumonitis (previously referred to as Farmer’s Lung Disease), is a form of allergic lung disease caused by bacteria and fungal species found in dust in agricultural operations. Occupations at risk include dairy farmers, poultry workers, zoo keepers, and nursery workers. It is more common in the northern temperate regions in the Northeast, North Central, and Great Plains northern states. Typical exposures occur in the fall through late spring and involve moldy silage, feed, and hay and straw bedding.
Reference: Steve Kirkhorn MD, National Farm Medicine Center, a service of Marshfield Clinic, Marshfield, Wisconsin
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