Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China
(1) The overall trends of the number of daily close contacts and infected cases as well as their association during an epidemic of Omicron Variant of SARS-CoV-2 have been poorly described. (2) Methods: This study was to describe the trends during the epidemic of the Omicron variant of SARS-CoV-2 in...
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MDPI AG
2022-10-01
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| Series: | Healthcare |
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| Online Access: | https://www.mdpi.com/2227-9032/10/11/2126 |
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| author | Furong Li Fengchao Liang Bin Zhu Xinxin Han Shenying Fang Jie Huang Xuan Zou Dongfeng Gu |
| author_facet | Furong Li Fengchao Liang Bin Zhu Xinxin Han Shenying Fang Jie Huang Xuan Zou Dongfeng Gu |
| author_sort | Furong Li |
| collection | DOAJ |
| description | (1) The overall trends of the number of daily close contacts and infected cases as well as their association during an epidemic of Omicron Variant of SARS-CoV-2 have been poorly described. (2) Methods: This study was to describe the trends during the epidemic of the Omicron variant of SARS-CoV-2 in Shenzhen, China, including the number of close contacts and infected cases as well as their ratios by days and stages (five stages). (3) Results: A total of 1128 infected cases and 80,288 close contacts were identified in Shenzhen from 13 February 2022 to 1 April 2022. Before the citywide lockdown (14 March), the number of daily close contacts and infected cases gradually increased. However, the numbers showed a decrease after the lockdown was imposed. The ratio of daily close contacts to daily infected cases ranged from 20.2:1 to 63.4:1 and reached the lowest during the lockdown period. The growth rate of daily close contacts was consistent with those of infected cases observed 6 days later to some extent. (4) Conclusions: The Omicron variant epidemic was promptly contained by tracing close contacts and taking subsequent quarantine measures. |
| first_indexed | 2024-03-09T19:02:23Z |
| format | Article |
| id | doaj.art-3d9d038deba84a8882ddd14b47d5de02 |
| institution | Directory Open Access Journal |
| issn | 2227-9032 |
| language | English |
| last_indexed | 2024-03-09T19:02:23Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Healthcare |
| spelling | doaj.art-3d9d038deba84a8882ddd14b47d5de022023-11-24T04:50:13ZengMDPI AGHealthcare2227-90322022-10-011011212610.3390/healthcare10112126Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, ChinaFurong Li0Fengchao Liang1Bin Zhu2Xinxin Han3Shenying Fang4Jie Huang5Xuan Zou6Dongfeng Gu7School of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, ChinaShenzhen Center for Disease Control and Prevention, Shenzhen 518073, ChinaSchool of Public Health and Emergency Management, Southern University of Science and Technology, 1088 Xueyuan Avenue, Fuguang Community, Taoyuan Street, Nanshan District, Shenzhen 518055, China(1) The overall trends of the number of daily close contacts and infected cases as well as their association during an epidemic of Omicron Variant of SARS-CoV-2 have been poorly described. (2) Methods: This study was to describe the trends during the epidemic of the Omicron variant of SARS-CoV-2 in Shenzhen, China, including the number of close contacts and infected cases as well as their ratios by days and stages (five stages). (3) Results: A total of 1128 infected cases and 80,288 close contacts were identified in Shenzhen from 13 February 2022 to 1 April 2022. Before the citywide lockdown (14 March), the number of daily close contacts and infected cases gradually increased. However, the numbers showed a decrease after the lockdown was imposed. The ratio of daily close contacts to daily infected cases ranged from 20.2:1 to 63.4:1 and reached the lowest during the lockdown period. The growth rate of daily close contacts was consistent with those of infected cases observed 6 days later to some extent. (4) Conclusions: The Omicron variant epidemic was promptly contained by tracing close contacts and taking subsequent quarantine measures.https://www.mdpi.com/2227-9032/10/11/2126COVID-19OmicronChinastrategy |
| spellingShingle | Furong Li Fengchao Liang Bin Zhu Xinxin Han Shenying Fang Jie Huang Xuan Zou Dongfeng Gu Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China Healthcare COVID-19 Omicron China strategy |
| title | Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China |
| title_full | Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China |
| title_fullStr | Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China |
| title_full_unstemmed | Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China |
| title_short | Close Contacts, Infected Cases, and the Trends of SARS-CoV-2 Omicron Epidemic in Shenzhen, China |
| title_sort | close contacts infected cases and the trends of sars cov 2 omicron epidemic in shenzhen china |
| topic | COVID-19 Omicron China strategy |
| url | https://www.mdpi.com/2227-9032/10/11/2126 |
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