Swiss study suggests condom use not necessary for some HIV-positive patients.
D017280:Condoms / Q000706:statistics & numerical data*; D004196:Disease Outbreaks / Q000517:prevention & control* / Q000706:statistics & numerical data*; D015658:HIV Infections / Q000453:epidemiology* / Q000517:prevention & control*; D006801:Humans; D015994:Incidence; D017410:Practice Guidelines as Topic; D018570:Risk Assessment; D012307:Risk Factors; D012309:Risk-Taking; D018571:Sentinel Surveillance; D013557:Switzerland / Q000453:epidemiology; D014480:United Nations; D014944:World Health Organization