Anaerobic bacteria are the major residents of human skin and mucous membrane. The importance, as opportunistic pathogens, of anaerobic bacteria are well recognized because of more population with´ decreased defense against bacterial invasion due to chemotherapy, radiation therapy, extensive surgical operation etc. are dealt at hospitals.
An analysis of the anaerobe isolation´ result´s at Yonsei University Medical Center during the January 1974-May 1975 period´ was made and the following results we´re obtained.
1) From 118 patients 146 strains of anaerobes were isolated. Among these 81 3% were nonsporforming anaerobes. Most frequently isolated anaerobes were Pc. asaccharolyticus, Ps. anaerobius, Ps. intermedius, B. fragilis and Cl. perfringens.
2) Anaerobes were frequently isolated` from wound, female" genital; intraalidominal, and pleuropulmonary specimens. Fewer anaerobes were isolated from´ blood, spinal fluid` and´ liver specimens.
3) The ratio of anaerobe isolation to total bacteria isolation` we´re; liver´ 66.7%, intraabdominal 33.3%, pleuropulmonary 28.9%, spinal fluid 5. 0% and´ blood- 4: 2%.
4) Among the 118 anaerobe isolated patients, 48.3% yielded anaerobes only and rest of them yielded anaerobes together with aerobes.
5) Most of the gram-positive anaerobes were susceptible to´ the antibiotics tested. Exception was to` tetracycline to which appreciable number showed resistance: It was noteworthy that only 48% of B. fragilis was susceptible to tetracycline.
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