by Bill Snyder | Thursday, Aug. 3, 2017, 9:27 AM Researchers in the Vanderbilt Institute for Global Health are testing whether a unique “couples-centered” intervention developed in the southern African nation of Mozambique can reduce mother-to-child transmission of HIV. By encouraging men to play a larger role in the health care provided to their HIV-infected pregnant wives, they hope the women will be more adherent to anti-retroviral therapy and less likely to pass the AIDS virus to their children before or during birth.