[Evaluation of different methods of utilization of sugars in Neisseria gonorrhoeae]

5 methods of utilization of sugars were evaluated in 25 strains previously identified as N. gonorrhoeae: CTA agar, modified CTA agar, gelatin starch agar, Mueller Hinton agar plus bromotimol blue and rapid method. 100% of the strains of N. gonorrhoeae were identified by the CTA and rapid methods, whereas 96% were identified by the modified CTA and gelatin starch agar methods. No strain of gonoccocus was identified by the Mueller Hinton agar method plus bromotimol blue. The cystine tripticase agar medium (CTA) is the elective method to confirm the isolates of Neisseria gonorrhoeae. As it is mainly made by U.S. companies, it is difficult for Cuba to acquire it. The gelatin-starch agar method and the rapid method are useful alternative of the CTA medium, so their use is proposed in this paper.