Risk factors of mushroom growing:
(1) warm, moist environment
(2) abundant organic material
Clinical features:
(1) worker at a mushroom farm
(2) chronic cough and/or dyspnea
(3) demonstration allergy to one or more antigens in the environment
(4) exclusion of other diagnoses
(5) improvement after removal from exposure
Mushrooms associated with allergic reactions:
(1) Agaricus
(2) Bunashimeji
(3) Hypsizigus marmoreus
(4) Lyophyllum
(5) Pholiota
(6) Pleurotus osteatus
(7) Poria megalopora
(8) Shitake (Shii-take; Lentinus edodes)
Other exposures include:
(1) fungi (Aspergillus, Alternaria, Fusarium, Mucor, Rhizopus, etc)
(2) yeast
(3) bacteria (thermophilic actinomycetes, Pseudomonas, etc)
(4) compost
