HIV can actually survive for more than 10 days at normal room temperature and in a liquid environment, such as the blood or body fluids of an AIDS patient, according to the latest studies. Items contaminated by HIV patients with their bodily fluids may survive for up to 3 days at room temperature. But as long as the skin or mucous membranes are intact and unbroken, even if you come into contact with HIV, there is no problem because our skin is the first line of defense against the virus and it is very powerful, including sharing utensils, shaking hands or toilets, these situations are not necessary to fear. Sharing utensils, the digestive tract has powerful proteases, and all viruses are generally okay as long as there are no ulcers or bleeding of the oral mucosa or ulcers or bleeding of the digestive tract, which can destroy the virus. In the network also found a lot of HIV virus can survive how long, there may be some literature is 100 ℃ for 20 minutes, or with formalin, or 70% alcohol, how many degrees of heating how many minutes, these are in the case of research. If in life, as long as there is no damage to the mucous membrane of the skin, normal like shaking hands or eating together, or even living together, should not be infected with HIV. Just remember that there are three main modes of transmission, first, sexual transmission, which is one of the most important reasons for the high incidence of HIV in China now; second, mother-to-child transmission; third, blood transmission.