There were concerns people who got positive results wouldn't follow up for health care. But now there is word that having people test themselves for HIV is effective and could help bring the worldwide epidemic under control.
Experts say the best method is a self-test combined with counseling, and that could improve rates of early detection and treatment, which is key.
Self-testing for HIV is done at home by collecting samples from the gum lining of the mouth.
The test is non-invasive, convenient, private and can provide preliminary results within 20 minutes.