evidence: - 38.6 million [34.9 million–43.1 million] adults (15 years or older). [...] - 2.3% higher among young women and girls aged between 15 and 24 in eastern and southern Africa - 7.7% higher among gay men and other men who have sex with men - 3% higher among sex workers - 5% higher among people who inject drugs - 9.2% higher among transgender people - 1.3% higher among people in prisons. [...] - In sub-Saharan Africa, women and girls (all ages) accounted for 62% of all new HIV infections. In all other geographical regions, over 73% of new HIV infections in 2023 occurred among men and boys.