Trichomonas vaginalis (TV) has, in the past, been regarded as a useful marker for other asymptomatic sexually transmitted infections such as gonorrhoea and chlamydia in women. The aim of this study was to determine whether TV is still such a marker. All women attending the Department of Genito-urinary Medicine at the Leeds General Infirmary with a diagnosis of TV during 1983 and 1993 were identified and concurrent infections were tabulated. In 1993 approximately 30% of women with TV had at least one other sexually transmitted infection. The prevalence of gonorrhoea in women with trichomoniasis fell from 20% in 1983 to 10% in 1993 whilst the prevalence of chlamydia in these women remained unchanged at 15%. Thus trichomoniasis is still frequently associated with other pathogens in women and screening of these women for other infections remains essential.
We introduced polymerase chain reaction (PCR) testing for Neisseria gonorrhoeae (NG) on the Cobas 4800 CT/NG assay for all samples received with a Chlamdyia trachomatis request in March 2012. From 1 March 2012 to 30 June 2012, all PCR-positive/culture-negative specimens had additional testing at another assay. A total of 40053 tests were performed. The estimated specificity and positive predictive value were 99.9% and 97.1%, respectively; thus routine additional testing is not required.
Why are we concerned today about the control of venereal disease? This report of an outbreak of gonorrhea in 1957 reveals some of the factors that hinder the eradication and final conquest of such conditions. Again it is shown that the problem is not just biological; it is even more significantly a social question.
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