Is there a 100% effective way to prevent sexual transmission of HIV and STDs?
The only 100% effective way to prevent sexual transmission of HIV and STDs is through abstinence – avoiding all vaginal, anal and oral sex. Using a latex male condom or a female condom can greatly reduce, but not entirely eliminate, the risk of HIV and STD transmission. Abstinence is the only method to completely eliminate the possibility of sexual transmission of HIV or STDs.