First documented gymnasium cluster of COVID-19 with whole genome sequencing in Australia

Commun Dis Intell (2018). 2023 Sep 21:47. doi: 10.33321/cdi.2023.47.55.

Abstract

Background: Transmission of coronavirus disease 2019 (COVID-19) has been demonstrated in fitness settings internationally. We report the first documented case of transmission of COVID-19 in a gymnasium in Australia in 2020.

Methods: Case finding and case interviews were conducted among attendees in a Western Sydney gymnasium, Australia. Whole genome sequencing using an amplicon-based approach was performed on all SARS CoV-2 polymerase chain reaction positive samples detected through surveillance.

Results: We show that five cases of COVID-19 were linked to the gymnasium, with transmission occurring on 7 July 2020, when the index case transmitted the infection to four other gymnasium attendees through the sharing of an enclosed space.

Conclusions: There is an ongoing risk of transmission of COVID-19 within gymnasium environments and they are justifiably classified as a 'high-risk' venue. There may be a need to expand ventilation and space requirements to prevent transmission of COVID-19 in such settings in the context of severe COVID-19 variants or to prevent respiratory disease transmission in general.

Keywords: SARS virus; risk factors; gymnasium; coronavirus disease 2019 (COVID-19); Australia; public health; severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); outbreak; fitness; whole genome sequencing.

MeSH terms

  • Australia / epidemiology
  • COVID-19* / epidemiology
  • Fitness Centers*
  • Humans
  • SARS-CoV-2 / genetics
  • Whole Genome Sequencing

Supplementary concepts

  • SARS-CoV-2 variants