In vitro antibiotic susceptibilities of Yersinia enterocolitica and Yersinia intermedia isolated from sewage effluents

摘要

Of the 31 strains comprising nineteen Yersinia enterocolitica (biotype 1A) and twelve Yersinia intermedia (biotypes 1, 2 and 4) isolated from sewage effluents, most (94-97%) were resistant to p-lactam antibiotics. The p-lactam antibiotic to which maximum number of isolates were sensitive was cefotaxime. With regard to susceptibility of isolates to non-p-lactam antibiotics, none was found resistant to amikacin, ciprofloxacin, cotrimoxazole and tetracycline. However, a varying pattern of sensitivity was observed with other non-beta-lactams such as chloramphenicol, erythromycin, sulphafurazole, clindamycin, tobramycin and trimethoprim. In comparison to earlier reports, differences were observed in the antimicrobial susceptibilities of these isolates to ceftazidime, cefuroxime and piperacillin. [References: 19]