Statistics on the transfer of HIV/AIDS

In school we were taught to see HIV as something that "can affect anyone," which is technically true, but doesn't say anything about proportions.


https://www.aidsmap.com/about-hiv/vaginal-sex-and-risk-hiv-transmission

The risk of catching HIV in heterosexual sex is 0.04% for men and 0.08% for women.
The higher risk for women is because cells beneath the cervix are more vulnerable to infection. Furthermore, tears in the vagina are more common than tears in the penis.

With HIV fully suppressed through drugs there was no transmission at all in 36,000 cases of vaginal sex without condoms. Researchers judge the risk in these cases as zero.

https://www.thesun.co.uk/news/1433046/scientists-claim-hiv-positive-people-can-have-unprotected-sex-without-passing-on-virus/

548 heterosexual and 340 male homosexual couples were studied for several years in Britain, in a study that found that HIV was not transmitted as long as the infected partner took antiretroviral treatment.

https://www.cdc.gov/hiv/group/msm/index.html

81% of U.S. HIV diagnoses in 2013 were among homosexual men.

https://openaidsjournal.com/VOLUME/6/PAGE/98/ABSTRACT/

Homosexual men have 38 times higher rates of HIV and syphilis than other men, and 109 times more than women.

https://www.npr.org/sections/goatsandsoda/2014/07/10/330217262/why-hiv-spreads-less-easily-in-heterosexual-couples

Male homosexual sex where the partner has HIV is 20 times more likely to lead to an HIV infection, than in heterosexual sex where the partner has HIV. (Microsoft Research and the Zambia-Emory HIV Project)

(Obviously, anal sex tears up wounds where the disease can come in contact with the blood. Also, there's the amount of sex; the "modal range" of sex partners for homosexual men is 101-500 in a lifetime, with 10.2-15.7% having 501-1,000 sex partners, shown by Paul Van de Ven et. al. in Journal of Sex Researxh. Only 2.7% are monogamous, by survey replies, while the number for heterosexual men is about 75%.)

https://www.foxnews.com/health/hiv-incidence-cdc-estimates

HIV infections in the U.S. are down 73% since a peak in the 1980s.

Per year:
Infections in 1981: 20,000
Infections in 1984-1985: 130,400
Infections in 1991-2007: 58,0000
Infections in 2019: 34,800

In 2019 about 1.2 million Americans had HIV.

Homosexual men accounted for most infections: 63% in 1981 and 66% in 2019.

40% of "transgender women" have HIV, reports the CDC.

Increase and decrease is not the same in all groups:

"while HIV infections fell among White people (56% in 1981 to 25% in 2019), the proportion of infections among Black individuals has increased over time from 29% to 41%, in 1981 vs 2019, respectively, and among Hispanic/Latino individuals from 16% in 1981 to 29% in 2019.

"Black persons comprised 41% of infections in 2019, but comprised just 12% of the population, and Hispanic/Latino persons made up 29% of infections, and represent 17% of population.

"Additional increases were seen among females, with the proportion of infections rising from 8% in 1981 to 18% in 2019.

"Results also suggest people who inject drugs account for the largest drop in infections, plummeting 93% from a high in 1988-1990 (34,500 to 2,500 in 2019)."