Human Close Contact Behavior-Based Interventions for COVID-19 Transmission

COVID-19 has threatened human lives. Countries have implemented various interventions such as vaccination, mask-wearing, body temperature screening, and isolation. However, the effectiveness of single and combined interventions has not yet been accurately analyzed. In this study, an improved SEIR mo...

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Main Authors: Doudou Miao, Nan Zhang
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Buildings
Subjects:
Online Access:https://www.mdpi.com/2075-5309/12/3/365
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author Doudou Miao
Nan Zhang
author_facet Doudou Miao
Nan Zhang
author_sort Doudou Miao
collection DOAJ
description COVID-19 has threatened human lives. Countries have implemented various interventions such as vaccination, mask-wearing, body temperature screening, and isolation. However, the effectiveness of single and combined interventions has not yet been accurately analyzed. In this study, an improved SEIR model considering both real human indoor close contact behaviors and susceptibility to COVID-19 was established. Taking Hong Kong as an example, a quantitative assessment of the relationship between the efficiency of single and combined interventions and implementation time and intensity was carried out. The results showed that the infection risk (one-hour close contact with an infected person) of COVID-19 of students, workers, and non-workers/non-students was 3.1%, 8.7%, and 13.6%, respectively. Workplace closures were more effective among built environment interventions. If mask-wearing was mandatorily required in schools, workplaces, supermarkets, shopping centers, and public transport, COVID-19 could not be totally restricted. Workers should be prioritized for vaccination, followed by non-workers/non-students and students. Among all interventions, reducing close contact rate and increasing vaccination rate were better interventions. There was no COVID-19 outbreak (basic reproduction number <i>R</i><sub>0</sub> = 1) if the close contact reduction rate was 59.9% or the vaccination rate reached 89.5%. The results may provide scientific support for COVID-19 prevention and control.
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spelling doaj.art-a19f67c0a6294267a2cdad93e4385f182023-11-24T00:39:32ZengMDPI AGBuildings2075-53092022-03-0112336510.3390/buildings12030365Human Close Contact Behavior-Based Interventions for COVID-19 TransmissionDoudou Miao0Nan Zhang1Beijing Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, ChinaBeijing Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing University of Technology, Beijing 100124, ChinaCOVID-19 has threatened human lives. Countries have implemented various interventions such as vaccination, mask-wearing, body temperature screening, and isolation. However, the effectiveness of single and combined interventions has not yet been accurately analyzed. In this study, an improved SEIR model considering both real human indoor close contact behaviors and susceptibility to COVID-19 was established. Taking Hong Kong as an example, a quantitative assessment of the relationship between the efficiency of single and combined interventions and implementation time and intensity was carried out. The results showed that the infection risk (one-hour close contact with an infected person) of COVID-19 of students, workers, and non-workers/non-students was 3.1%, 8.7%, and 13.6%, respectively. Workplace closures were more effective among built environment interventions. If mask-wearing was mandatorily required in schools, workplaces, supermarkets, shopping centers, and public transport, COVID-19 could not be totally restricted. Workers should be prioritized for vaccination, followed by non-workers/non-students and students. Among all interventions, reducing close contact rate and increasing vaccination rate were better interventions. There was no COVID-19 outbreak (basic reproduction number <i>R</i><sub>0</sub> = 1) if the close contact reduction rate was 59.9% or the vaccination rate reached 89.5%. The results may provide scientific support for COVID-19 prevention and control.https://www.mdpi.com/2075-5309/12/3/365COVID-19interventionSEIR modelclose contactinfection riskmask-wearing
spellingShingle Doudou Miao
Nan Zhang
Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
Buildings
COVID-19
intervention
SEIR model
close contact
infection risk
mask-wearing
title Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
title_full Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
title_fullStr Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
title_full_unstemmed Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
title_short Human Close Contact Behavior-Based Interventions for COVID-19 Transmission
title_sort human close contact behavior based interventions for covid 19 transmission
topic COVID-19
intervention
SEIR model
close contact
infection risk
mask-wearing
url https://www.mdpi.com/2075-5309/12/3/365
work_keys_str_mv AT doudoumiao humanclosecontactbehaviorbasedinterventionsforcovid19transmission
AT nanzhang humanclosecontactbehaviorbasedinterventionsforcovid19transmission