Rapid Replacement of SARS-CoV-2 Variants by Delta and Subsequent Arrival of Omicron, Uganda, 2021

Emerg Infect Dis. 2022 May;28(5):1021-1025. doi: 10.3201/eid2805.220121. Epub 2022 Mar 23.

Abstract

Genomic surveillance in Uganda showed rapid replacement of severe acute respiratory syndrome coronavirus 2 over time by variants, dominated by Delta. However, detection of the more transmissible Omicron variant among travelers and increasing community transmission highlight the need for near-real-time genomic surveillance and adherence to infection control measures to prevent future pandemic waves.

Keywords: COVID-19; Delta; Omicron; SARS-CoV-2; Uganda; coronavirus disease; coronaviruses; genomic surveillance; rapid replacement; respiratory infections; severe acute respiratory coronavirus 2; variants; viruses; whole-genome deep sequencing; zoonoses.

MeSH terms

  • COVID-19* / epidemiology
  • Humans
  • Pandemics
  • SARS-CoV-2* / genetics
  • Uganda / epidemiology

Supplementary concepts

  • SARS-CoV-2 variants