A condom may tear or slip off – or is just forgotten. If a partner of either sex is HIV-positive, the infection may be transmitted. PEP (= post­-exposure prophylaxis) should be started as soon as possible. HIV drugs need to be administered after no more than 48 hours and taken for 4 weeks. The drugs stop HIV taking hold in the body. For more information, go to www.aidsberatung.de