Resistance pattern of anaerobic bacteria isolated in a general hospital during a two-year period

Abstract
During a 2-year period, 717 anaerobic bacteria were isolated from clinical specimens. Bacteroides sp. were the most common bacteria (49%) followed by Peptococcus and Peptostreptococcus (35%) and Clostridium (16%). On the basis of disc tests, Bacteroides sp. have been found resistant to ampicillin (86%) tetracycline (63%), clindamycin (20%), chloramphenicol (6.2%) and metronidazole (12%). Some strains had joint resistance to several useful antibiotics. In some cases, resistance was confirmed by MIC determinations.

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