PLoS Medicine (Jan 2019)

Association between severe drought and HIV prevention and care behaviors in Lesotho: A population-based survey 2016-2017.

  • Andrea J Low,
  • Koen Frederix,
  • Stephen McCracken,
  • Salome Manyau,
  • Elizabeth Gummerson,
  • Elizabeth Radin,
  • Stefania Davia,
  • Herbert Longwe,
  • Nahima Ahmed,
  • Bharat Parekh,
  • Sally Findley,
  • Amee Schwitters

DOI
https://doi.org/10.1371/journal.pmed.1002727
Journal volume & issue
Vol. 16, no. 1
p. e1002727

Abstract

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BackgroundA previous analysis of the impact of drought in Africa on HIV demonstrated an 11% greater prevalence in HIV-endemic rural areas attributable to local rainfall shocks. The Lesotho Population-Based HIV Impact Assessment (LePHIA) was conducted after the severe drought of 2014-2016, allowing for reevaluation of this relationship in a setting of expanded antiretroviral coverage.Methods and findingsLePHIA selected a nationally representative sample between November 2016 and May 2017. All adults aged 15-59 years in randomly selected households were invited to complete an interview and HIV testing, with one woman per household eligible to answer questions on their experience of sexual violence. Deviations in rainfall for May 2014-June 2016 were estimated using precipitation data from Climate Hazards Group InfraRed Precipitation with Station Data (CHIRPS), with drought defined as ConclusionsDrought in Lesotho was associated with higher HIV prevalence in girls 15-19 years old in rural areas and with lower educational attainment and riskier sexual behavior in rural females 15-24 years old. Policy-makers may consider adopting potential mechanisms to mitigate the impact of income shock from natural disasters on populations vulnerable to HIV transmission.