Resource Logo
CDC HIV/AIDS/Viral Hepatitis/STD/TB Prevention News Update

AFRICA: HIV Drugs Prevent Infection in African Study


Reuters (02.17.10) - Thursday, February 18, 2010

HIV patients on antiretroviral therapy are less likely to transmit the virus to their seronegative partners, according to new research presented Wednesday in San Francisco at the 17th Conference on Retroviruses and Opportunistic Infections. The news could boost efforts to provide ARVs for patients in developing countries, and it adds to the debate over how billions of dollars are spent on global HIV treatment and prevention programs.

Dr. Deborah Donnell, affiliated with the Fred Hutchinson Cancer Research Center in Seattle, and colleagues closely followed 3,400 serodiscordant couples in seven African countries for the study. All couples were counseled on prevention and given free condoms. The HIV-infected partners were put on ARVs when their immune system CD4 cell counts reached a predefined level.

Over the next three years, 103 previously uninfected partners seroconverted. Of those transmissions, 102 occurred before the HIV-positive partner had been placed on ARVs, Donnell said.

"Only one happened when the partner was on antiretroviral therapy," said Donnell. "That amounts to a final reduction of 92 percent when on antiretroviral therapy." The couples were tested every few months, and researchers could determine whether the partner who seroconverted acquired the virus from someone outside of the primary partnership.

"We think it is very likely that antiretroviral treatment is going to reduce the risk of HIV transmission," Donnell said. "Our data will be informative for policymakers."


Copyright © 2010 -CDC Prevention News Update, Publisher. All rights reserved to Information, Inc., Bethesda, MD. The CDC National Center for HIV, STD and TB Prevention provides the following information as a public service only. Providing synopses of key scientific articles and lay media reports on HIV/AIDS, other sexually transmitted diseases and tuberculosis does not constitute CDC endorsement. This daily update also includes information from CDC and other government agencies, such as background on Morbidity and Mortality Weekly Report (MMWR) articles, fact sheets, press releases and announcements. Reproduction of this text is encouraged; however, copies may not be sold, and the CDC HIV/STD/TB Prevention News Update should be cited as the source of the information. Contact the sources of the articles abstracted below for full texts of the articles.

Information in this article was accurate in February 18, 2010. The state of the art may have changed since the publication date. This material is designed to support, not replace, the relationship that exists between you and your doctor. Always discuss treatment options with a doctor who specializes in treating HIV.