Medicine and Health

The risk of indoor sports and culture events for the transmission of COVID-19

S. Moritz, C. Gottschick, et al.

Discover compelling insights from a groundbreaking study by Stefan Moritz and colleagues, which demonstrates that effective hygiene and ventilation can drastically reduce the risk of SARS-CoV-2 transmission in indoor mass gatherings, making them safer than previously thought.

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Abstract

This study investigated the risk of SARS-CoV-2 transmission during an experimental indoor mass gathering event under three different hygiene practices. Results show that the mean number of direct contacts per visitor was nine, significantly reducible with appropriate hygiene. Ventilation system quality significantly impacted aerosol exposure; a poorly performing system increased exposure tenfold. Overall infection burden heavily depends on ventilation and hygiene; with effective ventilation and hygiene, indoor mass gatherings have minimal impact on epidemic spread.

Publisher

Nature Communications

Published On

Aug 19, 2021

Authors

Stefan Moritz, Cornelia Gottschick, Johannes Horn, Mario Popp, Susan Langer, Bianca Klee, Oliver Purschke, Michael Gekle, Angelika Ihling, Frank D. L. Zimmermann, Rafael Mikolajczyk

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