The growth of mold spores occurs when hay is not dried properly. The growth of these mold spores accumulates over time and will infect the host upon release from the source. When in the air, the<unk>  may inhale the particles and induce an allergic reaction. The hay at risk for increased volumes of spores is found at the bottom of the pile. The presence of<unk>  Disease peaks during late winter and early spring and is mostly seen after the harvest season when symptoms have set in. This disease is most prevalent in damp climates.
Farmer's lung
Bird fancier's lung
Metsovo lung
World Trade Center lung
Saber-sheath trachea
Underwood's septa
Flock worker's lung
Bronchitis kettle