With this project, the investigators aim to expand knowledge on the molecular epidemiology of Trichomonas vaginalis, thereby also evaluating the endosymbionts (Mycoplasma hominis and Trichomonas vaginalis virus) and their impact on T. vaginalis virulence. A key aspect of the study is the direct comparison between identical T. vaginalis isolates harbouring endosymbionts and those from which the endosymbionts have been removed or inhibited. For this purpose T. vaginalis clinical isolates collected in Outpatients' Centre for Infectious Venereal and Dermatological Diseases, Vienna from patients specimens (vaginal swabs or urine) will be tested. Mycoplasma hominis isolates already collected from patients samples will also be analyzed and compared with M. hominis, which are T. vaginalis endosymbionts. In addition, 700 samples from female sex workers in Austria, who undergo regular medical check-ups, will be examined. The prevalence of sexually transmitted diseases (STDs) will be evaluated using DNA extracted from vaginal swabs, with a particular focus on parasite Trichomonas vaginalis and bacterium M. hominis. Of particular interest is the study of the prevalence of these organisms in a cohort of women who are at increased risk of infection with these pathogens due to their occupation. Moreover, the study will provide detailed information on possible co-infections, as data from routine screenings are available.
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Characterisation of T. vaginalis isolates and evaluation of the proportion of sexually transmitted agents in vaginal swabs of Austrian sex workers
Timeframe: 2 years