The risk of indoor sports and culture events for the transmission of COVID-19
| Autor: | Angelika Ihling, Mario Popp, Susan Langer, Bianca Klee, Rafael T. Mikolajczyk, Michael Gekle, Oliver Purschke, Frank D. L. Zimmermann, Stefan Moritz, Cornelia Gottschick, Johannes Horn |
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| Rok vydání: | 2021 |
| Předmět: |
Coronavirus disease 2019 (COVID-19)
Epidemiology media_common.quotation_subject Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Science General Physics and Astronomy General Biochemistry Genetics and Molecular Biology Article law.invention Population screening law Hygiene Environmental health Pandemic Mass gathering Disease Transmission Infectious Humans Computational models Computer Simulation media_common Aerosols Multidisciplinary SARS-CoV-2 Air exchange COVID-19 General Chemistry Ventilation Transmission (mechanics) Air Pollution Indoor Ventilation (architecture) Environmental science |
| Zdroj: | Nature Communications Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021) |
| ISSN: | 2041-1723 |
| Popis: | Nearly all mass gathering events worldwide were banned at the beginning of the COVID-19 pandemic, as they were suspected of presenting a considerable risk for the transmission of SARS-CoV-2. We investigated the risk of transmitting SARS-CoV-2 by droplets and aerosols during an experimental indoor mass gathering event under three different hygiene practices, and used the data in a simulation study to estimate the resulting burden of disease under conditions of controlled epidemics. Our results show that the mean number of measured direct contacts per visitor was nine persons and this can be reduced substantially by appropriate hygiene practices. A comparison of two versions of ventilation with different air exchange rates and different airflows found that the system which performed worst allowed a ten-fold increase in the number of individuals exposed to infectious aerosols. The overall burden of infections resulting from indoor mass gatherings depends largely on the quality of the ventilation system and the hygiene practices. Presuming an effective ventilation system, indoor mass gathering events with suitable hygiene practices have a very small, if any, effect on epidemic spread. Mass gathering events represent a risk for transmission of SARS-CoV-2. Here, the authors describe an experimental indoor test event in which individual contacts were measured and use aerosol and epidemiological modelling to evaluate transmission risks of different types of restrictions in the arena. |
| Databáze: | OpenAIRE |
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