UHS recognizes there are circumstances that put people at high risk of becoming infected with HIV or other STIs including:
- Condom failure/unprotected sex with a person known to be HIV-infected
- Sexual assault
- Unprotected sex with a person at increased risk for HIV (e.g., men who have sex with men, injection drug user, sex worker)
A narrow window of opportunity exists to prevent HIV infection after exposure by starting antiviral medication. Immediate medical care must be sought to assess the risk, counsel, and start the preventive medication. This should occur as soon as possible and generally no later than 72 hours post-exposure.