What is the primary method of preventing HIV transmission?

The primary method of preventing HIV transmission is through the consistent use of condoms. Condoms serve as a barrier that reduces the risk of sexually transmitted infections, including HIV, by preventing the exchange of bodily fluids during sexual activity. When used correctly and consistently, they are highly effective in lowering the risk of HIV transmission between sexual partners.

While other measures, such as vaccination and the use of antibiotics, are important in the context of infectious disease prevention, they do not specifically target HIV. As of now, there is no approved vaccine for HIV, and antibiotics are not effective against viral infections like HIV. Regular exercise is beneficial for overall health but has no direct effect on preventing HIV transmission. Thus, consistent and correct use of condoms remains the cornerstone of HIV prevention strategies.