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Urogenital trichomoniasis is an infectious inflammatory disease of the urogenital system caused by protozoan Trichomonas vaginalis and characterized by rapid dissemination and development of complications. Because laboratory diagnosis by microscopic methods encounters difficulty, we undertook detection of T. vaginalis by microscopic study of native and stained (methylene blue, acridine orange, Gram, Romanovsky-Giemsa) uretheral scrapings. 69 patients having no clinical signs of the disease were examined after sexual contacts with women suffering infection of the urogenital tract. Staining with acridine orange and by Romanovsky-Giemsa method proved the most informative methods for diagnosis of torpid trichomoniasis (85.5 and 75.4% respectively). The study of native samples is of little informative value (5.8%). The data obtained were used to develop an algorithm of microscopic investigation for the examination of patients with urogenital acute, subacute or chronic trichomoniasis and carriers of T. vaginalis.

A case of tertiary active syphilis in a 41-year-old male patient is described, who had not been administered specific treatment. Clinical symptoms of the disease manifested without apparent provoking factors; they were characterized by extensive involvement and no visceral abnormalities.