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Updated: Dec 27, 2025

Ex Vivo Infection of Human Lymphoid Tissue and Female Genital Mucosa with Human Immunodeficiency Virus 1 and Histoculture
Published on: October 12, 2018
Preexposure Prophylaxis for Human Immunodeficiency Virus Infection for Men Who Have Sex with Men and Transgender
Kenneth A Katz1, Andrew J Park2, Julia L Marcus3
1Department of Dermatology, Kaiser Permanente, 1600 Owens Street, 9th Floor, San Francisco, CA 94158, USA.
Abstract:
HIV remains an important public health concern in the United States, particularly for men who have sex with men (MSM) and transgender persons. With HIV preexposure prophylaxis (PrEP), persons who are HIV-uninfected take antiretroviral medications to prevent HIV infection. The most common PrEP regimen involves taking a single pill daily and is very effective in reducing risk of HIV infection, with few adverse effects. Barriers to PrEP access exist for MSM and transgender persons. Dermatologists can help combat the ongoing HIV epidemic among MSM, transgender persons, and others by understanding why, when, and how PrEP should be considered as an HIV prevention approach.
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