No. Look at what's on his cigarette butt! According to the China HIV testing center, it takes 0.5-20 years for human beings to be infected with HIV, with an average of 7- 10 years before they develop into AIDS patients, which is called incubation period. The blood, semen, milk, vaginal secretions and organs of HIV-infected people in the incubation period contain HIV, which is contagious.
1) AIDS spreads in the following three ways:
1. Blood transmission-importing blood or blood products contaminated by HIV; Accepting organs (organ transplantation) and semen (artificial insemination) of HIV-infected people; Sharing injection equipment with infected people (such as sharing injection needles with intravenous drug users).
2. Sexual transmission-unprotected anal sex, vaginal sex and oral sex.
Vertical transmission-infected pregnant women may transmit HIV to the fetus or baby after pregnancy, delivery and breastfeeding.