[Incidence of sexually transmissible diseases increases. Is prevention delegated to the background?].
D003430:Cross-Sectional Studies; D005858:Germany / Q000453:epidemiology; D018451:Homosexuality, Male / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D012749:Sexually Transmitted Diseases / Q000453:epidemiology* / Q000517:prevention & control; D014505:Urban Population / Q000706:statistics & numerical data*