The majority of the cups are used by one person, not two or more people. As long as the cup is not contaminated with the body fluids or secretions of AIDS patients, the person using the cup will not be infected with AIDS, the most important thing is to ensure the cleanliness of the cup. As long as the cup does not contain HIV, there is no source of HIV transmission. AIDS is an infectious disease, there must be a source of infection, in order to pass through the airplane cup such a transmission channel, infected to susceptible people. Therefore, as long as the cup is clean and not shared with other people, there is no source of HIV transmission, so you will not be infected with AIDS.