alexa Resistance to antiretroviral drugs in newly diagnosed, young treatment-naïve HIV-positive pregnant women in the province of KwaZulu-Natal, South Africa.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Parboosing R, Naidoo A, Gordon M, Taylor M, Vella V, Parboosing R, Naidoo A, Gordon M, Taylor M, Vella V

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Abstract In 2004, KwaZulu-Natal initiated one of the world's largest HIV/AIDS treatment programs. Studies in South Africa have shown that patients on antiretroviral therapy (ART) develop rapidly and transmit drug resistant mutations. Since resistance testing is not widely available in Kwazulu-Natal, the Department of Health conducted the first HIV drug resistance (HIVDR) threshold survey in 2005, which did not identify any mutations associated with HIVDR. The objective of this study was to conduct a follow-up threshold survey to update the information on HIVDR. This study was conducted in 2009 in five antenatal care sites in Kwazulu-Natal using the HIVDR threshold survey method developed by WHO. Two hundred and thirteen newly-diagnosed HIV positive, drug-naïve primigravidae, less than 22 years of age were included in the survey. Of the 82 HIV positive specimens, 17 had insufficient volume for genotyping and, of the remaining 65, 47 were genotyped sequentially. Drug resistance was identified by sequencing the HIV-1 pol gene, using the ViroSeq® HIV-1 genotyping system v2.0. Of the 47 samples that were genotyped, only one presented with a K103N mutation, which equates to a prevalence of transmitted HIVDR of <5\%. The low prevalence of transmitted HIVDR is in keeping with statistical models of the early stages of ART rollout. As ART coverage is increasing continuously, there is a need to ensure that vigilance of HIVDR continues so that the emergence and spread of HIVDR is minimized. Copyright © 2011 Wiley-Liss, Inc. This article was published in J Med Virol and referenced in Journal of AIDS & Clinical Research

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