Ecological Aspects of Antimicrobial Susceptibility of Аnaerobic Bacteria | CMAC

Ecological Aspects of Antimicrobial Susceptibility of Аnaerobic Bacteria

Clinical Microbiology and Antimicrobial Chemotherapy. 2001; 3(1):39-47

Type
Journal article

Abstract

The treatment options for the therapy of anaerobic infections, the most typical anaerobic pathogens and their mechanisms of resistance to antimicrobials are given in the article. The data on the susceptibility testing of Bacteroides spp., Clostridium spp. and Fusobacterium spp. isolated form hospitalized adults from Sweden and Nicaragua who were receiving antimicrobial therapy and from Nicaraguan antimicrobial treated children and healthy children under 2 years of age. Benzylpenicillin, cephalotin and piperacillin were the antimicrobials less effective against Bacteroides species, followed by clindamycin and cefoxitin. Fusobacterium species resistant to benzylpenicillin were also found. A significant difference was observed between the Nicaraguan and Swedish patients. Most Clostridium species from both groups of patients were sensetive to the antimicrobial agents tested. Bacteroides strains were the only bacterial species resistant to ampicillin and cefoxitin isolated from children; the percentage of resistant strains increased with age. These resistant strains were isolated mainly from antimicrobial treated children. However, Bacteroides strains resistant to ampicillin were also isolated from the intestinal microflora of healthy children. No resistant strains to imipenem, metronidazole and chloramphenicol were found. The antimicrobial susceptibility pattern of anaerobic and aerobic bacteria isolated from 219 Nicaraguan patients was determined against the most common antimicrobials used in Nicaragua. B.fragilis group strains were the most common anaerobic isolates and the most resistant to ampicillin (56%), cefoxitin (28%) and clindamycin (25%). Fusobacterium strains resistant to ampicillin and cefoxitin (44% and 12% resistance, respectively) were also isolated. All the gram-positive anaerobic strains isolated were sensitive to the antimicrobials tested.

Views
0 Abstract
0 PDF
0 Crossref citations
Shared