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Neisseria gonorrhoeae multi-antigen sequence typing (NG-MAST) of ciprofloxacin resistant isolates of Pretoria, South Africa
  1. Mari De Jongh (maridejongh{at}
  1. University of Limpopo, Medunsa Campus, South Africa
    1. Yusuf Dangor (yusufd{at}
    1. University of Limpopo, Medunsa Campus, South Africa
      1. Catherine Ison (catherine.ison{at}
      1. Health Protection Agency, United Kingdom
        1. Anwar Hoosen (hoosen{at}
        1. University of Limpopo, Medunsa Campus, South Africa


          Gonococcal isolates resistant to ciprofloxacin collected from 2004 to 2005, in the Pretoria region, were characterised using the multi-antigen sequence typing (MAST). The isolates were obtained from men presenting with urethritis to primary health-care clinics and general practitioners. All isolates were tested for susceptibility to ciprofloxacin by Etest, disc diffusion and agar dilution methods. Sequence based typing, directed at the por and tbpB genes and compared with international isolates using the NG-MAST database on the Internet, was done for 18 isolates (10 ciprofloxacin resistant isolates and 8 susceptible controls. There was one cluster (four isolates) of known sequence type (ST) similar to the pattern seen amongst strains from Scotland, England and Durban, South Africa. Two other known STs were identified, whilst the remaining STs were unique.

          • NG-MAST
          • Neisseria gonorrhoeae
          • ciprofloxacin resistance
          • urethritis

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