In order to survey on the distribution of pathogenic, Staphylococcus in the air in crowded area the author catched bacteria, of falling down and cultured during 4 seasons from September, 1931 to August, 1982. The results were obtained as follows:
1. Culture rate of Staphylococcus in air shows 53.9%, 257 cases in total 476 each, and no differences were found after seasons, however specially summer season shows 59.4% higher than any other seasons.
2. Culture rate of coagulase positive species shows 40. 1%, 103 colonies, and 50.8% in summer, 30.8,o in winter.
3. Average culture rate shows maximum 38.5% theater, 26.0% hospital ward, 18:10 lecture -room, 14. 1o barbershop, 13.1% hotel, 12.5,o restaurant. The seasonal culture rate results maxi-mum 54.2;0 at theater in summer season and restaurant, barbershop, hotel were 8.3%, minimum in winter season.
4. The results of survey of contaminated air by the pathogenic Staphylococcus were average 42.4 colonies per petri dish, and shows maximum contamination of 50.5 colonies at theater the minimum 29.3 colonies at restaurant.
5. The Biological characters of cultured Staphylococcus show mannitol fermentation, 97.1% among 103 colonies and the color were golden yellow.
6. On antibiotic susceptibility test average 79.6%, 82 colonies among 103 colonies shows resistance to sulfisoxazole, 67.0% to tetracycline 59.2% to penicillin, 49.5% to oleandomycin, 44% to streptomycin, 23.3% to chloramphenicol and leucomycin,, 20.4% to colistin, 14.6% to kanamycin, and 6.8% to erythromycin, the highest sensitive in erythromycin.
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