| Summary: | This guideline was developed by the New York State Department of Health (NYSDOH) AIDS Institute (AI) for healthcare practitioners in any medical setting (e.g., emergency department, sexual health clinic, urgent care clinic, inpatient unit primary care practice) who manage the care of individuals who request post-exposure prophylaxis (PEP) after a possible exposure to HIV. Despite the availability of prevention measures, exposures occur that pose the risk of transmission. Fortunately, with rapid initiation of PEP, infection can be blocked. Preventing new HIV infections is crucial to the success of New York State's Ending the Epidemic Initiative. HIV transmission can be prevented through use of barrier protection during sex (e.g., latex condoms), safer drug injection techniques, and adherence to universal precautions in the healthcare setting. HIV infection can also be prevented with use of antiretroviral (ARV) medications taken as pre-exposure prophylaxis (PrEP). After an exposure has occurred, HIV infection can be prevented with rapid administration of ARV medications as PEP. The first dose of PEP should be administered within 2 hours of an exposure (ideal) and no later than 72 hours after an exposure
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