Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Transmission Associated With an Indoor Music Event That Required Proof of Full Vaccination Against Coronavirus Disease 2019 (COVID-19) Prior to Entry-Seattle, July 2021

Clin Infect Dis. 2022 Oct 3;75(Suppl 2):S251-S253. doi: 10.1093/cid/ciac494.


In July 2021, Public Health-Seattle & King County investigated a coronavirus disease 2019 (COVID-19) outbreak at an indoor event intended for fully vaccinated individuals, revealing unvaccinated staff, limited masking, poor ventilation, and overcrowding. Supporting businesses to develop and implement comprehensive COVID-19 prevention plans is essential for reducing spread in these settings.

Keywords: COVID-19; SARS-CoV-2; indoor transmission; vaccination; ventilation.

MeSH terms

  • COVID-19* / prevention & control
  • Disease Outbreaks
  • Humans
  • Music*
  • SARS-CoV-2
  • Vaccination