Microbiological study of urethritis in men attending a STD clinic.

A microbiological study of 275 male patients suffering from urethritis and 100 healthy male controls showed that Neisseria gonorrhoeae (130), Ureaplasma urealyticum (81), Staphylococcus aureus (38), and alpha and beta streptococci (34) were the common isolates. Specificity and sensitivity of the direct fluorescent antibody technique in the detection of N. gonorrhoeae in 130 urethral samples, were found to be 100 per cent. Penicillin (10 units/disc) resistance was found in 36.93 per cent of N. gonorrhoeae. Minimum inhibitory concentration of penicillin for 75 isolates of N. gonorrhoeae (including 5 beta lactamase producers) varied from 0.01-5 micrograms/ml with a 95 per cent confidence limit range of 0.26-0.61 microgram/ml. Most of the N. gonorrhoeae isolates tested were sensitive to norfloxacin and spectinomycin. Inclusion bodies of Chlamydia trachomatis were observed in 25 patients.