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Four in ten transgender women have HIV

(HealthDay)—Four in 10 transgender women have HIV, which shows the urgent need to offer them more prevention and treatment services, according to a …
Worth noting which groups are skewing the results. "The report found significant racial and ethnic disparities. In all, 62% of Black transgender women and 35% of Hispanic transgender women had HIV, compared with 17% of white transgender women."

So 37% of the US trans-population (16% Black + 21% Latino) is responsible for 97% of the HIV cases.