http://www.avert.org/teencondoms.htm
So how good are they really?
There's lots of myths about how good or bad condoms are. If they're used correctly, condoms are about 94% - 97% (depending on which study you look at) effective at preventing pregnancy and they're nearly 100% effective at preventing transmission of HIV. Some people say that some viruses can 'pass through' latex - that's not true.
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