Zika Virus Circulates at Low Levels in Western and Coastal Kenya

J Infect Dis. 2020 Aug 4;222(5):847-852. doi: 10.1093/infdis/jiaa158.

Abstract

Background: Zika virus (ZIKV) was discovered over 70 years ago in East Africa, but little is known about its circulation and pathogenesis there.

Methods: We screened 327 plasma samples collected 2-12 months after febrile illness in Western and coastal Kenya (1993-2016) for binding and neutralizing antibodies to distinguish ZIKV and dengue virus (DENV) responses, which we found were common in coastal Kenya.

Results: Two cases had durable ZIKV-specific antibodies and 2 cases had ZIKV antibodies at similar levels as DENV antibodies.

Conclusions: This suggests low-level ZIKV circulation in Kenya over 2 decades and sets a baseline for future surveillance efforts in East Africa.

Keywords: Kenya; Zika virus; arbovirus; seroprevalence.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies, Neutralizing / blood*
  • Antibodies, Viral / blood*
  • Coinfection / blood
  • Coinfection / epidemiology
  • Dengue Virus / immunology*
  • Female
  • Fever / blood*
  • Humans
  • Kenya / epidemiology
  • Prevalence
  • Zika Virus / immunology*
  • Zika Virus Infection / blood
  • Zika Virus Infection / epidemiology*

Substances

  • Antibodies, Neutralizing
  • Antibodies, Viral