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Which community preventive measures were implemented in a Chinese city to address the coronavirus disease 2019 (COVID-19) pandemic, and were they associated with limited community transmission?
This retrospective case series included 7 imported COVID-19 cases and 800 individuals at high risk. After the implementation of community measures, no locally acquired case of COVID-19 with indirect links to confirmed cases was identified in the community.
The findings of this study suggest that the implementation of community containment strategies by a multidisciplinary team may limit the community transmission of COVID-19.
A new outbreak of pneumonia caused by severe acute respiratory syndrome coronavirus 2 in Wuhan, China, is spreading rapidly around the globe. Limited information on control in community settings is available.
To detail measures enacted within a community to prevent the spread of coronavirus disease 2019 (COVID-19) and to evaluate the spread of COVID-19 associated with implementation of the program.
Design, Setting, and Participants
This case series study details the implementation of prevention measures in a specific community setting among community-dwelling individuals exposed to or at risk of COVID-19 in Haiyu, Shenzhen, China, from January 23 to April 10, 2020.
Community containment strategies for tracking, quarantine, and management were strictly, cooperatively, and effectively implemented by a team that included a general practitioner, a community manager, and public safety bureau officials.
Main Outcomes and Measures
Number of locally acquired cases with indirect links to confirmed COVID-19 cases. Diagnosis with COVID-19 was confirmed when throat swab samples tested positive for severe acute respiratory syndrome coronavirus 2 on reverse transcription–polymerase chain reaction.
Approximately 34 686 individuals live in Haiyu, including 2382 residents aged 65 years or older. Seven individuals with COVID-19 acquired outside the community (age, 20-70 years; 3 [42%] women) were moved from quarantine to a hospital for standard isolation treatment. A total of 20 people who were asymptomatic and who had had direct contact with these individuals were closely observed by health care workers at a nearby hotel. Additionally, 800 individuals considered to be at higher risk were moved from quarantine to home isolation for 14 days. There were no locally acquired cases of COVID-19 with indirect links reported in the Haiyu community from the time that the study began on January 23, 2020, to April 10, 2020.
Conclusions and Relevance
These findings suggest that cooperation among the authorities of multiple sectors allowed for the implementation of preventive measures that were associated with limited community transmission.
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Accepted for Publication: May 16, 2020.
Published: June 22, 2020. doi:10.1001/jamanetworkopen.2020.12934
Open Access: This is an open access article distributed under the terms of the CC-BY License. © 2020 Zhang X-M et al. JAMA Network Open.
Corresponding Author: Wen-Wu Zhang, BMed (firstname.lastname@example.org) and Qing-Li Dou, PHD (email@example.com), Department of Emergency, Affiliated Baoan Hospital of Southern Medical University, The People’s Hospital of Baoan Shenzhen, No. 118, Second road Longjing, Baoan District, Shenzhen 518101, China.
Author Contributions: Drs X.-M. Zhang and Dou had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: W.-W. Zhang, Dou, Cheng.
Acquisition, analysis, or interpretation of data: X.-M. Zhang, Zhou, Li, Wei, Hu, Liu.
Drafting of the manuscript: X.-M. Zhang, Zhou, Liu.
Critical revision of the manuscript for important intellectual content: Zhou, W.-W. Zhang, Dou, Li, Wei, Hu, Cheng.
Statistical analysis: Zhou, Liu.
Administrative, technical, or material support: Dou, Li, Cheng.
Supervision: W.-W. Zhang, Cheng.
Conflict of Interest Disclosures: None reported.
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