1. HIV data and statistics. https://www.who.int/teams/global-hiv-hepatitis-and-stis-programmes/hiv/strategic-information/hiv-data-and-statistics (accessed May 10, 2022).
2. HIV and injection drug use | HIV transmission | HIV basics | HIV/AIDS | CDC, Mar. 30, 2022. https://www.cdc.gov/hiv/basics/hiv-transmission/injection-drug-use.html (accessed May 10, 2022).
3. C. S. H. gov D. last updated: August 27 and 2018, Substance use and HIV risk, HIV.gov, Aug. 27, 2018. https://www.hiv.gov/hiv-basics/hiv-prevention/reducing-risk-from-alcohol-and-drug-use/substance-use-and-hiv-risk (accessed May 10, 2022).
4. Sex workers | HIV by group | HIV/AIDS | CDC, Apr. 01, 2022. https://www.cdc.gov/hiv/group/sexworkers.html (accessed May 10, 2022).
5. Paz-Bailey G, Noble M, Salo K, Tregear SJ. Prevalence of HIV among U.S. female sex workers: systematic review and meta-analysis. AIDS Behav. 2016;20(10):2318–31. https://doi.org/10.1007/s10461-016-1332-y.