PMID- 16652038 OWN - NLM STAT- MEDLINE DCOM- 20060524 LR - 20200930 IS - 1525-4135 (Print) IS - 1525-4135 (Linking) VI - 41 IP - 5 DP - 2006 Apr 15 TI - Potential impact of antiretroviral therapy on HIV-1 transmission and AIDS mortality in resource-limited settings. PG - 632-41 AB - OBJECTIVE: To estimate the potential impact of antiretroviral therapy on the heterosexual spread of HIV-1 infection and AIDS mortality in resource-limited settings. METHODS: A mathematic model of HIV-1 disease progression and transmission was used to assess epidemiologic outcomes under different scenarios of antiretroviral therapy, including implementation of World Health Organization guidelines. RESULTS: Implementing antiretroviral therapy at 5% HIV-1 prevalence and administering it to 100% of AIDS cases are predicted to decrease new HIV-1 infections and cumulative deaths from AIDS after 10 years by 11.2% (inter-quartile range [IQR]: 1.8%-21.4%) and 33.4% (IQR: 26%-42.8%), respectively. Later implementation of therapy at endemic equilibrium (40% prevalence) is predicted to be less effective, decreasing new HIV-1 infections and cumulative deaths from AIDS by 10.5% (IQR: 2.6%-19.3%) and 27.6% (IQR: 20.8%-36.8%), respectively. Therapy is predicted to benefit the infected individual and the uninfected community by decreasing transmission and AIDS deaths. The community benefit is greater than the individual benefit after 25 years of treatment and increases with the proportion of AIDS cases treated. CONCLUSIONS: Antiretroviral therapy is predicted to have individual and public health benefits that increase with time and the proportion of infected persons treated. The impact of therapy is greater when introduced earlier in an epidemic, but the benefit can be lost by residual infectivity or disease progression on treatment and by sexual disinhibition of the general population. FAU - Abbas, Ume L AU - Abbas UL AD - Division of Infectious Diseases, School of Medicine, Falk Medical Building, University of Pittsburgh, 3601 Fifth Avenue, Pittsburgh, PA 15213, USA. abbasu@dom.pitt.edu FAU - Anderson, Roy M AU - Anderson RM FAU - Mellors, John W AU - Mellors JW LA - eng GR - 1 R21 AI064092-01A1/AI/NIAID NIH HHS/United States GR - U01 AI 38858/AI/NIAID NIH HHS/United States GR - Wellcome Trust/United Kingdom PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - United States TA - J Acquir Immune Defic Syndr JT - Journal of acquired immune deficiency syndromes (1999) JID - 100892005 RN - 0 (Anti-HIV Agents) SB - IM EIN - J Acquir Immune Defic Syndr. 2006 Jun;42(2):262 MH - Acquired Immunodeficiency Syndrome/*drug therapy/*epidemiology/mortality/*transmission MH - Africa South of the Sahara/epidemiology MH - Anti-HIV Agents/*therapeutic use MH - CD4 Lymphocyte Count MH - Disease Progression MH - Female MH - HIV Infections/*drug therapy/*epidemiology/mortality/transmission MH - Health Care Rationing MH - Humans MH - Male MH - Prevalence MH - Sensitivity and Specificity MH - Sexual Behavior MH - South Africa/epidemiology MH - Uncertainty MH - World Health Organization EDAT- 2006/05/03 09:00 MHDA- 2006/05/25 09:00 CRDT- 2006/05/03 09:00 PHST- 2006/05/03 09:00 [pubmed] PHST- 2006/05/25 09:00 [medline] PHST- 2006/05/03 09:00 [entrez] AID - 00126334-200604150-00013 [pii] AID - 10.1097/01.qai.0000194234.31078.bf [doi] PST - ppublish SO - J Acquir Immune Defic Syndr. 2006 Apr 15;41(5):632-41. doi: 10.1097/01.qai.0000194234.31078.bf.