Eating with an AIDS patient is not contagious, because the saliva of an AIDS patient does not contain the virus, even if it contains a small amount of virus, it is not enough to cause infection. In fact, not only eating together is not contagious, but also kissing, hugging or shaking hands with an AIDS patient is not contagious; or living, working, using office utensils, using toilets, showering or sleeping in the same bed with an AIDS patient is not contagious. AIDS is mainly transmitted through sexual transmission, blood transmission and mother-to-child transmission, so in order to avoid contracting AIDS, you should adhere to cleanliness, keep a fixed number of sexual partners, avoid importing unproven blood and blood products, and do not share personal items such as toothbrushes, razors and shavers with others.