Abstract
This case is a man of 43 years old. Bronchial asthma first occurred in 1957, two years after he got an employment, a warehouse keeper dealing with various animal feeds including Alfalfa, Milo, Safflower and Coan. Antigens of each feed and a mixed dust antigen of all feeds mentioned were prepared, and some allergological examinations, skin test, Prausnitz-Kustner reaction and provocative inhalation test, were conducted. All antigens used were shown positive except Coan antigen both in skin test and in inhalation test. In Prausnitz-Kustner reaction, Alfalfa and dust antigen were shown positive. A hyposensitizing therapy with these antigens was carried out and the result seems satisfactory so that no asthma attack has occurred since 23 weeks from the beginning of therapy. These findings indicate that this is a case of occupational and allergic bronchial asthma by four kinds of animal feed.
