Descriptive epidemiology of SARS-CoV-2 Beta (B.1.351) variant cases in England, December 2020 to June 2022

Influenza Other Respir Viruses. 2023 Nov;17(11):e13204. doi: 10.1111/irv.13204.

Abstract

The emergence of the SARS-CoV-2 Beta (B.1.351) variant in November 2020 raised concerns of increased transmissibility and severity. We describe the epidemiology of 949 confirmed SARS-CoV-2 Beta variant cases in England, identified between December 2020 and June 2022. Most cases were detected in the first 3 months. A total of 10 deaths (1.1%; 10/949) were identified among all cases and of those with travel information, 38 (4.9%; 38/781) cases with hospital admissions within 14 days of a positive test being detected. 52.9% (413/781) cases were imported. This study reinforces the importance of monitoring of travel-associated cases to inform public health response and reduce transmissibility of new variants.

Keywords: B.1.351; England; SARS-CoV-2 Beta; second generation surveillance system; travel; whole genome sequencing.

MeSH terms

  • COVID-19* / epidemiology
  • England / epidemiology
  • Humans
  • SARS-CoV-2* / genetics
  • Travel

Supplementary concepts

  • SARS-CoV-2 variants