Unprotected sex less risky if HIV-positive partner on antiretroviral therapy
Zero transmission rate of virus seen in study of nearly 900 couples
![HIV infected cell](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/07/071116_mr_hiv_free.jpg?fit=860%2C460&ssl=1)
VIRUS BLOCKER Treating HIV-positive people with antiretroviral drugs curbs virus transmission, even via unprotected sex. (False-color image of HIV-infected immune cell shown.)
NIH/WikimediaCommons