Undetectable = Untransmittable (U=U) - Minnesota Dept. of Health

Undetectable = Untransmittable (U=U)

When taken as prescribed, HIV medications can decrease the amount of HIV present in blood to be too low to measure. This is called being undetectable.

A person living with HIV who gets and stays undetectable has effectively no risk of transmitting HIV to their sex partners.

This concept is known as Undetectable = Untransmittable (U=U).

How it works

  1. Become undetectable. This can take up to 6 months after starting HIV medication. Your health care provider will perform blood tests and let you know when you’re undetectable.

  2. Stay undetectable. Get a second undetectable test result at least 6 months after the first. Continue to take your HIV medications daily and visit your health care provider regularly. They will monitor your blood tests to make sure you’re still undetectable.

timeline visual showing how to use HIV treatment as prevention

Updated Wednesday, 17-Jan-2018 07:42:18 CST