The saliva of an AIDS patient is not infectious. Because saliva of AIDS patients usually does not contain HIV, and even if it does, the amount is very low and not enough to cause infection in the general population, so there is no need to worry about HIV transmission from saliva of AIDS patients. Therefore, kissing, hugging, or shaking hands with an AIDS patient will not result in HIV infection. In fact, the virus is found in blood, semen, prostate fluid, vaginal secretions, cerebrospinal fluid, pleural fluid, ascites and other body fluids of AIDS patients. To avoid infection, you should avoid contact with the blood and body fluids of AIDS patients. If you are diagnosed with the infection, you should go to the hospital as soon as possible. Antiviral treatment should be given to suppress the replication of the virus to avoid progression to the AIDS stage.