Serological characterisation of Neisseria gonorrhoeae by co-agglutination technique

Antibiotic susceptibility pattern in cases of acute gonococcal urethritis, was studied by single disc diffusion technique and minimum inhibitory concentration (MIC) by agar dilution technique were determined for 5 antibiotics, viz penicillin, ampicillin, tetracycline, gentamicin and norfloxacin. All the penicillinase producing Neisseria gonorrhoeae (PPNG) and non-PPNG strains were sensitive to norfloxacin. 72% of the isolates belonged to serogroup WII/WIII by co-agglutination technique.