From Medical News Today online…
Most scientific studies relating to HIV and transgender people focus on transgender women — research about HIV and transgender men is limited.
According to research from 2018, this is because HIV prevalence is thought to be higher among transgender women: approximately 25–31%, compared with 0–3% among transgender men.
Other research, from the University of California San Francisco, suggests that trans MSM have an increased risk of contracting HIV, including those who do sex work.
This research states that in one study, most trans MSM reported not consistently using a condom during receptive anal and frontal sex with non-trans male partners. Participants also reported low rates of HIV testing and a low perception of the risk.