In the USA, HIV and AIDS are most prevalent among the gay male population

hivinfo.nih.gov: HIV and Gay and Bisexual Men. hivinfo.nih.gov. https://hivinfo.nih.gov/understanding-hiv/fact-sheets/hiv-and-gay-and-bisexual-men

Explicitly states that gay and bisexual men are the population most affected by HIV in the US.

cdc.gov: Fast Facts: HIV in the United States | HIV | CDC. cdc.gov. https://www.cdc.gov/hiv/data-research/facts-stats/index.html

Demonstrates that gay, bisexual, and other men who have sex with men account for the vast majority of new US infections.

cdc.gov: Vital Signs: HIV Infection, Diagnosis, Treatment, and Prevention Among Gay, Bisexual, and Other Men Who Have Sex with Men — United States, 2010–2019 | MMWR. cdc.gov. https://www.cdc.gov/mmwr/volumes/70/wr/mm7048e1.htm

Focuses specifically on HIV infection data and trends among gay, bisexual, and other men who have sex with men in the US.

cdc.gov: HIV Diagnoses, Deaths, and Prevalence: 2025 Update | HIV Data | CDC. cdc.gov. https://www.cdc.gov/hiv-data/nhss/hiv-diagnoses-deaths-and-prevalence-2025.html

Notes that the majority of recent US HIV diagnoses are attributed to male-to-male sexual contact.