The prevalence of Trichomonas vaginalis infection among patients that presented to hospitals in the Kermanshah district of Iran in 2006 and 2007*

Trichomonas vaginalis (Tv) is a parasitic protozoan that infects the genitourinary tract and produces the most common curable sexually transmitted disease (STD) in sexually active women in all age groups (1). Globally, trichomoniasis affects approximately 57-180 million people, with the majority living in developing countries (2,3). It is predominantly spread via unprotected intercourse with an infected partner, but might be also spread via the fingers after masturbation (2).