Rare considering the scale of the industry. Dependent upon the nature of the work.
The number of spores present in the culture areas is enormous, therefore, prevention is essential: proper ventilation, wearing masks during harvesting, use of varieties known to produce fewer airborne spores.
Spasmodic cough followed by asthma attacks, initially only occurring in the work place. Rhinitis and conjunctivitis.
Skin tests using extracts prepared from spores taken from the work place. Positive tests for basidiospores may be observed even in asymptomatic subjects.
Specific IgE can be measured using an ELISA test.