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AIDS. 2019 Aug 22. doi: 10.1097/QAD.0000000000002351. [Epub ahead of print]

Progress toward HIV epidemic control in lesotho: results from a population-based survey.

Author information

1
Lesotho Ministry of Health, Maseru, Lesotho.
2
ICAP at Columbia University in Lesotho, Maseru, Lesotho.
3
Centers for Disease Control and Prevention, Atlanta, USA.
4
ICAP at Columbia University, New York, USA.
5
World Health Organization in Lesotho, Maseru, Lesotho.
6
Centers for Disease Control and Prevention in Lesotho, Maseru, Lesotho.

Abstract

OBJECTIVE:

The Lesotho Population-based HIV Impact Assessment (LePHIA) survey was conducted nationally and designed to measure HIV prevalence, incidence, and viral load suppression (VLS).

DESIGN:

A nationally representative sample of 9,403 eligible households was surveyed between November 2016 and May 2017; analyses account for study design. Consenting participants provided blood samples, socio-demographic and behavioral information.

METHODS:

Blood samples were tested using the national rapid HIV testing algorithm. HIV-seropositive results were confirmed with Geenius supplemental assay. Screening for detectable concentrations of antiretroviral (ARV) analytes was conducted on dried blood specimens from all HIV-positive adults using high-resolution liquid chromatography coupled with tandem mass spectrometry. Self-reported and/or ARV biomarker data were used to classify individuals as HIV-positive and on treatment. Viral load testing was performed on all HIV-positive samples at central labs. VLS was defined as HIV RNA < 1000 copies per mL.

RESULTS:

Overall, 25.6% of adults ages 15-59 were HIV-positive. Among seropositive adults, 81.0% (male: 76.6%, female: 84.0%) reported knowing their HIV status, 91.8% of people living with HIV (male: 91.6%, female: 92.0%) who reported knowing their status reporting taking ARVs, and 87.7% (male and female: 87.7%) of these had VLS. Younger age was significantly associated with being less likely to be aware of HIV status for both sexes.

CONCLUSIONS:

Findings from this population-based survey provide encouraging data in terms of HIV testing and treatment uptake and coverage. Specific attention to reaching youth to engage them in HIV-related intervention is critical to achieving epidemic control.

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