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Markers of sexually transmitted diseases in seminal fluid of male clients of female sex workers.
  1. A M Worm,
  2. E Lauritzen,
  3. I P Jensen,
  4. J S Jensen,
  5. C B Christiansen
  1. Department of Dermato-Venerology, Bispebjerg Hospital, Copenhagen, Denmark.


    OBJECTIVES: To screen for certain STD markers in a group of male clients of female sex workers. METHOD: Condoms with seminal fluid were collected at 10 "massage parlours" in Copenhagen. The seminal fluid samples were examined for HIV antibodies, markers of hepatitis B virus (HBV), Chlamydia trachomatis, and Mycoplasma genitalium. RESULTS: All samples (n = 332) were negative for HIV antibodies. Out of 327 samples examined for HBV markers 32 (9.8%) were positive for HBV core antibodies, one of which was also positive for HBV antigen. C trachomatis could be demonstrated in six out of 122 (4.9%) samples and M genitalium in one out of 122 samples. CONCLUSIONS: The finding of a C trachomatis prevalence of 4.9% is considerable higher than expected in men with a presumed age of 35-55 years. The demonstration of a prevalence of HBV markers of 9.8% indicates that these clients have an increased risk of HBV infection, a finding that further consolidates the recommendation of HBV vaccination of sex workers. As shown in this study, STD transmission in commercial sex may also have the client as the source.

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