Per a court order, HHS is required to restore this website as of 11:59PM ET, February 14, 2025.
Any information on this page promoting gender ideology is extremely inaccurate and disconnected from the immutable biological reality
that there are two sexes, male and female. The Trump Administration rejects gender ideology and condemns the harms it causes to children,
by promoting their chemical and surgical mutilation, and to women, by depriving them of their dignity, safety, well-being, and opportunities.
This page does not reflect biological reality and therefore the Administration and this Department rejects it.
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Find Answers to Your Questions
Learn How to Use
Learn How to Use the HIV Risk Reduction Tool
How to Use This Site
Welcome to the Centers for Disease Control and Prevention’s (CDC’s) HIV Risk Reduction Tool.
Your life matters, and learning how to stay heathy is important. This tool will help you learn how to lower your risk for getting HIV or transmitting it
to someone else.
- Estimate the HIV Risk. See the risk of getting or transmitting HIV during a single sex act if one partner has HIV.
- Find Answers to Your Questions. Get information about HIV and AIDS, and learn how to protect yourself and your partners.
On any page of this tool, you can get customized information about the risk of getting or transmitting HIV.
*All selections on any page of the HIV Risk Reduction Tool are optional, and you can change them at any time. The Estimate the HIV Risk page does not include all factors related to HIV risk.For information on all factors that can increase or decrease HIV risk, go to the Find Answers to Your Questions section or search for a topic in the search box.
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