An evaluation of microcult g.c. in venereal disease clinics

Microcult G.C. is a kit for cultivation and identification of Neisseria gonorrhoeae. ue of this kit was compared with the cultivation and identification methods of the Neisseria Department, Statens Seruminstitut, Copenhagen (WHO collaborating center for reference and research in gonococci). The investigation included 203 men and 80 women who appeared for examination at our veneral disease clinics. For examination of urethral specimens from men the predictive value of positive tests was found to be 93% and the predictive value of negative tests was 94%. For specimens from the urethra and cervix of women, the predictive value of positive tests was 95% and the predictive value of negative tests was 90%. The reliability of these results makes Microocult G.C. a valuable supplement to microscopy in venereal disease clinics with a relative high prevalence of gonorrhoea. The predictive value of positive tests from the anal canal was 21% and from the tonsils 3%; in these locations the test is not suitable for diagnostic purposes.