According to the data of CDC, after the drug-taking route and mother-to-child route of HIV infection were severely cracked down, the current situation is that sexual intercourse between men and women is the main route of transmission, and HIV-infected people are mostly of the opposite sex.

Why is there such a wrong cognition? This involves the knowledge of communication, so I won't say it here.

But I can tell you, one of the important reasons is that gay men's sexual behavior is mainly anal sex, and their skin is very easily damaged, so it is not easy to find a fixed object, so the number of sexual partners is much higher than that of heterosexuals, leading to cross-infection. The current data is about 15% infection rate among gay men, that is, there are about 10 to 15 gay men in 100 people.

At present, the infection probability of young college students is rising sharply, which has aroused great concern in society, but what we need to know is that heterosexual sex is still the main route of transmission.