RCT: SARS-CoV-2 transmission was largely prevented through a comprehensive preventive intervention in a large, live, indoor gathering event.

Prevention of SARS-CoV-2 transmission during a large, live, indoor gathering (SPRING): a non-inferiority, randomised, controlled trial – The Lancet Infectious Diseases

Invited Commentary: Concerts and COVID: can the beat go on? – The Lancet Infectious Diseases

Related: No COVID-19 cases found after a well-controlled indoor concert.

Commentary on Twitter

SPRING :a non-inferiority, randomised, controlled trial ??
In an indoor arena w/o physical distancing in which the audience tested negative,showed high compliance with medical mask wearing, and ventilation was optimised, transmission of SARS-CoV-2 was rarehttps://t.co/OfmJTeJsDb

— Antibiotic Stewa®️x? Bassam Ghanem (@ABsteward) November 27, 2021

New research Article: Prevention of #SARSCoV2 transmission during a large, live, indoor gathering (SPRING): a non-inferiority, randomised, controlled trial https://t.co/gClVGsa3l9 pic.twitter.com/3aYaLVR3Jr

— The Lancet Infectious Diseases (@TheLancetInfDis) November 28, 2021