Announcement: Updated Guidelines for Antiretroviral Postexposure Prophylaxis after Sexual, Injection-Drug Use, or Other Nonoccupational Exposure to HIV - United States, 2016.

New evidence-based guidelines, Updated Guidelines for Antiretroviral Postexposure Prophylaxis after Sexual, Injection-Drug Use, or Other Nonoccupational Exposure to HIV - United States, 2016, are now available online (http://www.cdc.gov/hiv/guidelines/). The guidelines update and expand the 2005 U.S. Department of Health and Human Services recommendations for clinical care providers regarding nonoccupational postexposure prophylaxis (nPEP) for exposure to human immunodeficiency virus (HIV) outside the health care setting for persons in the United States (1). Materials supporting nPEP guidelines implementation will also be posted online when they become available.