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Biogenics Research Institute
Other Respiratory Tract Disorders
Hypersensitivity Pneumonitis
Idiopathic Intersitial Lung Disease

Home-induced Hypersensitivity Pneumonitis
Disease name
Causative Agent(s)
Histopathological Pattern
Source of Agent(s)
Bird Fancier’s Lung Bird antigens HP with granulomata, NSIP, UIP-types Caged birds in home (40)
Feather Duvet Lung Feather antigen

HP, UIP type


Feather duvet(41)
Summer-type HP Trichosporon sp. HP with granulomata Old wooden houses during muggy weather (42)
Vaporizer Lung Undetermined Biopsy not done Cool mist vaporizer (31)
Hot Tub Lung Cladisporium sp. Mycobacterium HP, NSIP-type Hot tub room(33)
Hot tub water (43)
Hypersensitive Lung Disease Cephalosporium sp. Biopsy not done Home flood with sewer water, Humidifier (29)
Composter’s Lung T. vulgaris Biopsy not done Residential compost (44)
Humidifier Lung Thermophyilic organisms HP with granuloma Furnace humidifier (45)
Swamp Cooler Lung     Evaporative cooler
Sauna Taker’s Lung Aeurobasidium sp.   Contaminated water and bucket (46)
Gerbil Keeper’s Lung Gerbil protein   Gerbil cage (47)
Sax lung C. albicans   Saxophone mouthpiece(47)
Hypersensitivity Pneumonia Auerobasidium, Cladosporium, Alternaria, Curvularia, Aspergillus sp. HP, UIP-type  Sewage from faulty plumbing of A/C condensate drain.  Roof leak into wall space (48)

Hypersensitivity Pneumonia



Not determined


HP, NSIP-type 


Forced-air heating and cooling systems (9)