Early on in the COVID-19 pandemic, “super-spreader” events, in which large groups of people came together without masks to engage in activities amenable to high aerosol production and exchange (ranging from nightclubs and concerts to religious meetings), were repeatedly reported in poorly ventilated venues – of particular threat given the strong airborne transmissibility of SARS-CoV-2 particles.
Prospective Trials of COVID-19 Transmission in Large Gatherings