Aeroallergens of the southeast Missouri area: a report of skin test frequencies and air sampling data.

Aeroallergens in the Southeast Missouri area were identified by analyzing the positive skin tests of eight hundred seventeen patients and five years of air sampling. The important trees, grasses and weeds are enumerated. Reactivity levels of house dust, feathers and Dermatophagoides farinae exceeded all others. First among the fungi was Epicoccum purpurascens .