[1] Orebro Univ, Fac Med & Hlth, Dept Lab Med, WHO,Collaborating Ctr Gonorrhoea & Other STIs, SE-70185 Orebro, Sweden
[2] New South Wales Hlth Pathol, WHO, Microbiol, Collaborating Ctr Sexually Transmitted Infect & A, Randwick, NSW, Australia
[3] Publ Hlth England, Natl Infect Serv, London, England
[4] Natl Inst Infect Dis ANLIS Dr Carlos G Malbran, Natl Reference Lab STDs, Buenos Aires, DF, Argentina
[5] Skin & Genitourinary Med Clin, Harare, Zimbabwe
[6] Publ Hlth Agcy Canada, Natl Microbiol Lab, Winnipeg, MB, Canada
[7] Univ Saskatchewan, Saskatoon, SK, Canada
[8] WHO, Communicable Dis & Environm Determinants Hlth Dep, Washington, DC USA
[9] Ctr Dis Control & Prevent, Div STD Prevent, Atlanta, GA USA
[10] WHO, Dept Reprod Hlth & Res, Geneva, Switzerland