Emergence of SARS-CoV-2 Delta Variant, Benin, May-July 2021

Emerg Infect Dis. 2022 Jan;28(1):205-209. doi: 10.3201/eid2801.211909. Epub 2021 Nov 22.


Severe acute respiratory syndrome coronavirus 2 Delta variant epidemiology in Africa is unknown. We found Delta variant was introduced in Benin during April-May 2021 and became predominant within 2 months, after which a steep increase in reported coronavirus disease incidence occurred. Benin might require increased nonpharmaceutical interventions and vaccination coverage.

Keywords: Benin; COVID-19; Delta variant; SARS; SARS-CoV-2; West Africa; coronavirus; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; variant of concern; viruses; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benin / epidemiology
  • COVID-19*
  • Humans
  • SARS-CoV-2*

Supplementary concepts

  • SARS-CoV-2 variants