Under what circumstances would airborne transmission of SARS-CoV-2 occur?
17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022
; 2022.
Article
in English
| Scopus | ID: covidwho-2322412
ABSTRACT
To find out the circumstances under which airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) would happen, we conducted mechanistic and systematic modelling of two Coronavirus disease 2019 (COVID-19) outbreaks, i.e., Hunan 2-bus outbreak and Luk Chuen House outbreak (the horizontal cluster). Computational fluid dynamics (CFD) simulations, multi-zone airflow modelling, multi-route mechanistic modelling, and dose-response estimation were carried out selectively according to the transmission characteristics in each outbreak. Our results revealed that poorly ventilated bus indoor environments bred the Hunan 2-bus outbreak in which airborne transmission predominates;prevailing easterly background wind and probable door opening behaviour led to the secondary infections across the corridor in Luk Chuen House outbreak. Measures to facilitate sufficient ventilation indoors and positive pressure in the housing building corridor may help minimise infection risk. © 2022 17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022. All rights reserved.
Corridor; Hunan Bus; Luk Chuen House; Prevailing wind; Ventilation; Air; Air quality; Computational fluid dynamics; Diseases; Indoor air pollution; Risk assessment; Transmissions; Air flow modeling; Airborne transmission; Computational fluid dynamics simulations; Mechanistic models; Model response; Prevailing winds; Systematic modeling; Houses
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Collection:
Databases of international organizations
Database:
Scopus
Type of study:
Prognostic study
/
Systematic review/Meta Analysis
Language:
English
Journal:
17th International Conference on Indoor Air Quality and Climate, INDOOR AIR 2022
Year:
2022
Document Type:
Article
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