Dangerous sports without protection. The message being: you would not do this without protecting yourself so why would you have sex without condoms?

A gorgeous blonde wearing a bikini is not exactly what gays are interested in. But when this blonde appears in a full-page ad in Switzerland's No. 1 magazine for gays, her appearance seems to be even more inappropriate - as inappropriate as sex without a condom.

The Swiss Federal Office of Public Health is a non-profit organization. The campaign aims to contribute to prevention. The ad attempts to counter the troubling incidence of new infections among gays.