SciELO - Scientific Electronic Library Online

 
vol.106 número1-2One or two species? A morphometric comparison between robust australopithecines from Kromdraai and SwartkransForecasting electricity demand in South Africa: a critique of Eskom's projections índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google

Compartilhar


South African Journal of Science

versão On-line ISSN 1996-7489
versão impressa ISSN 0038-2353

Resumo

KINGE, Constance N. Wose; ATEBA, C. Njie  e  KAWADZA, D. Tonderai. Antibiotic resistance profiles of Escherichia coli isolated from different water sources in the Mmabatho locality, north-west province, South Africa. S. Afr. j. sci. [online]. 2010, vol.106, n.1-2, pp.44-49. ISSN 1996-7489.

The antibiotic resistance profiles of Escherichia coli (E. coli), isolated from different water sources in the Mmabatho locality were evaluated. Water samples were collected from the local wastewater- and water-treatment plants, the Modimola Dam and homes in the area, and then analysed for the presence of E. coli, using standard methods. Presumptive isolates obtained were confirmed by the analytical profile index test. Antibiotic susceptibility testing was performed by the disc diffusion method. Of the 230 E. coli isolates tested, marked antibiotic resistances (over 70%) were observed for erythromycin, tetracycline, ampicillin, chloramphenicol and norfloxacin. Multiple antibiotic resistance patterns were also compiled. Overall, the phenotype T-Ap-E was frequent for E. coli isolated from the local wastewater and water-treatment plants, Modimola Dam and tap water. Cluster analysis performed showed a unique antibiotic resistance pattern which suggested a link between isolates from all sampling points. The findings indicated that improper wastewater treatment may have a potential impact on the dissemination and survival of E. coli, as well as other pathogenic bacteria in water for human and animal consumption. This may result in water- and food-borne disease outbreaks with a negative effect on antibiotic therapy.

Palavras-chave : E. coli; antibiotic resistance; multiple antibiotic resistance (MAR) phenotypes; MAR indices; water-borne bacteria.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons