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Pre-exposure Prophylaxis

Lisa A. Spacek, M.D., Ph.D.
Pre-exposure Prophylaxis is a topic covered in the Johns Hopkins HIV Guide.

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  • Preexposure prophylaxis (PrEP) is the use of antiretroviral (ARV) drugs by HIV-negative individuals to prevent acquisition of HIV.
  • Consider PrEP for:
    • Anyone from a population whose HIV incidence is at least 2% per year; or
    • HIV-seronegative partners of HIV-infected person whose viral load is not suppressed.[2]

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Last updated: June 3, 2017


Spacek, Lisa A. "Pre-exposure Prophylaxis." Johns Hopkins HIV Guide, 2017. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545233/all/Pre_exposure_Prophylaxis.
Spacek LA. Pre-exposure Prophylaxis. Johns Hopkins HIV Guide. 2017. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545233/all/Pre_exposure_Prophylaxis. Accessed July 16, 2019.
Spacek, L. A. (2017). Pre-exposure Prophylaxis. In Johns Hopkins HIV Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545233/all/Pre_exposure_Prophylaxis
Spacek LA. Pre-exposure Prophylaxis [Internet]. In: Johns Hopkins HIV Guide. ; 2017. [cited 2019 July 16]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_HIV_Guide/545233/all/Pre_exposure_Prophylaxis.
* Article titles in AMA citation format should be in sentence-case
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