Prevalence and antibiotic susceptibility of Bacteroides fragilis group isolated from stool samples in North Lebanon
AUTOR(ES)
Yehya, Mariam, Hamze, Monzer, Mallat, Hassan, Dabbousi, Fouad
FONTE
Braz. J. Microbiol.
DATA DE PUBLICAÇÃO
2013-09
RESUMO
Fifty one strains of the Bacteroides fragilis group were isolated from 45 fecal samples. Classical phenotypic identification showed that 16 isolates were B. thetaiotaomicron, 12 B. uniformis, 9 B. eggerthii,7 B. vulgatus,3 B. caccae,2 Parabacteroides distasonis with 1 identified B. ovatus and 1 B. fragilis. The 51 strains were tested for susceptibility against 16 antimicrobial agents and the MICs for metronidazole were determined. The tests showed that imipenem, meropenem and chloram-phenicol were the most effective antibiotics (98%, 98% and 92.16% of susceptibility, respectively) followed by ticarcillin/clavulanic acid, piperacillin/tazobactam, rifampin (88.24% susceptibility), moxifloxacin 86.27% and tigecycline 84.31%. Ofloxacin and cefotaxime were the least effective antibiotics with 27.45% and 0% of activity respectively. Only six of the 51 isolated strains were resistant to metronidazole with MICs = 64 mg/L (1 strain) and > 256 mg/L (5 strains).
Documentos Relacionados
- Virulence markers and antimicrobial susceptibility of bacteria of the Bacteroides fragilis group isolated from stool of children with diarrhea in São Paulo, Brazil
- Antibiotic- and method-dependent variation in susceptibility testing results of Bacteroides fragilis group isolates.
- Prevalence of Fragilysin Gene in Bacteroides fragilis Isolates from Blood and Other Extraintestinal Samples
- Antibiotic Susceptibility of the Subspecies of Bacteroides fragilis
- Susceptibility to five antimicrobial agents of strains of the Bacteroides fragilis group isolated in Brazil.