AIDS can be transmitted through wounds because AIDS is a blood-borne disease and can cause infection if the blood of an AIDS patient or body fluids with the virus enter a healthy wound. This is because the virus can enter the bloodstream of a healthy person through a wound and cause HIV infection. Therefore, to avoid HIV infection, healthy people should avoid contact with the blood and body fluids of HIV patients, and should avoid unprotected sex with HIV patients to avoid HIV infection. If high-risk behavior occurs during contact with an AIDS patient, one should go to the hospital as soon as possible and take antiviral drugs to block the infection. It is recommended to take the blocking medication within 2 hours to avoid HIV infection. Even if more than 2 hours recommended to take within 48 hours, can achieve effective blocking effect. If more than 48 hours, not yet more than 72 hours should also take the blocking drug, there is a blocking effect. If it is more than 72 hours, basically there is not much blocking effect.