1. Centers for Disease Control and Prevention. 2018 Sexually Transmitted Disease Surveillance. Published January 22, 2020. Accessed July 1, 2020. https://www.cdc.gov/std/stats18/default.htm
2. Estimating the Population Size of Men Who Have Sex with Men in the United States to Obtain HIV and Syphilis Rates§
3. Centers for Disease Control and Prevention. HIV in the United States and Dependent Areas. Published September 9, 2019. Accessed October 28, 2019. https://www.cdc.gov/hiv/statistics/overview/ataglance.html
4. Centers for Disease Control and Prevention. Preexposure Prophylaxis for the Prevention of HIV Infection in the United States - 2017 Update. Published March 2018. Accessed July 1, 2020. https://www.cdc.gov/hiv/pdf/risk/prep/cdc-hiv-prep-guidelines-2017.pdf
5. Centers for Disease Control and Prevention. HIV Treatment as Prevention. Published November 12, 2019. Accessed January 29, 2020. https://www.cdc.gov/hiv/risk/art/index.html