| ["in vitro" activity of ten antimicrobial agents against anaerobic bacteria. a collaborative study, 1999-2002]. | the antimicrobial activity of ampicillin, ampicillin-sulbactam, cefoxitin, ceftriaxone, imipenem, piperacillin, piperacillin-tazobactam, clindamycin, metronidazole, and azitromycin was assesed against 166 strains of anaerobic bacteria recovered from eight hospitals in buenos aires. the strains studied were bacteroides fragilis group (65), fusobacterium spp. (26), prevotella spp. (21), porphyromonas spp. (10), clostridium difficile (10), other clostridia (12), and gram-positive cocci (22). the mi ... | 2004 | 15559195 |