alexa Potential impact of antiretroviral therapy on HIV-1 transmission and AIDS mortality in resource-limited settings.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Abbas UL, Anderson RM, Mellors JW, Abbas UL, Anderson RM, Mellors JW

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Abstract 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. This article was published in J Acquir Immune Defic Syndr and referenced in Journal of AIDS & Clinical Research

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