US approves first over-the-counter HIV home-use test
4 July 2012 Last updated at 04:50 BST
A home HIV test is expected to go on sale in the US within months, after winning regulator approval.
The OraQuick test checks saliva from a mouth swab for HIV and can produce results in 20 to 40 minutes.
Government estimates suggest 1.2 million people in the US are HIV-positive, but 20% do not know they are.
Kim Ghattas reports from Washington.