How effective are condoms?
Compelling international evidence has been gathered by the US
Department of Health and Human Services and the United
Nations Population Fund which shows that consistent use of latex
male condoms is a highly effective method for preventing HIV
transmission. Scientific research by the US National Institutes
of Health and World Health Organization (WHO) found “intact
condoms…are essentially impermeable to particles the size of
sexually transmitted disease pathogens, including the smallest
sexually transmitted virus”.
Four meta-analyses of condom effectiveness put the range at
69–94% 13, 14, 15, 16. Conclusive evidence from studies of serodiscordant
couples (where one partner is HIV-positive and the other is
not) shows that using a condom reduces the probability of HIV
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