[Investigation and analysis on characteristics of a cluster of COVID-19 associated with exposure in a department store in Tianjin].
Identifieur interne : 000D62 ( Ncbi/Curation ); précédent : 000D61; suivant : 000D63[Investigation and analysis on characteristics of a cluster of COVID-19 associated with exposure in a department store in Tianjin].
Auteurs : W S Wu [République populaire de Chine] ; Y G Li [République populaire de Chine] ; Z F Wei [République populaire de Chine] ; P H Zhou [République populaire de Chine] ; L K Lyu [République populaire de Chine] ; G P Zhang [République populaire de Chine] ; Y. Zhao [République populaire de Chine] ; H Y He [République populaire de Chine] ; X Y Li [République populaire de Chine] ; L. Gao [République populaire de Chine] ; X M Zhang [République populaire de Chine] ; H. Liu [République populaire de Chine] ; N. Zhou [République populaire de Chine] ; Y. Guo [République populaire de Chine] ; X M Zhang [République populaire de Chine] ; D. Zhang [République populaire de Chine] ; J. Liu [République populaire de Chine] ; Y. Zhang [République populaire de Chine]Source :
- Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi [ 0254-6450 ] ; 2020.
Abstract
Objective: To describe the epidemiological characteristics of a cluster of COVID-19 cases reported in Baodi district of Tianjin as of 18 February, 2020, which might be associated with the exposure in a local department store, and provide suggestions for prevention and control strategy development. Methods: The basic characteristics, time and area distributions, clinical manifestations, epidemiological history and transmission mode of the COVID-19 cases associated with the department store exposure were analyzed. Results: A total of 40 COVID-19 cases were associated with the department store exposure, accounting for 75.47% of the total confirmed cases (53 cases) reported in Baodi district. The cases were mainly at the age of 60 years or older (35.00%) and farmers (40.00%). The main clinical manifestations included fever (95.00%), cough (35.00%), and diarrhea (15.00%). The proportion of confirmed severe cases was 32.50%. The incidence curve showed that the incidence peak occurred on 31 January, 2020. Among the 40 cases, 6(15.00%) were department store employees, 19(47.50%) were customers and 15(37.50%) were close contacts (secondary cases). The first case occurred on 21 January, 2020, this case was a department store employee who had a purchasing history at whole sale markets in other provinces and cities before the onset, and 3 employees were still on duty after symptom onsets. The median of the incubation period of customer cases was 6 days, and the median of the interval between onset and medical treatment of customer cases was 7 days. Conclusion: This was a cluster epidemic of COVID-19, which might be associated with the exposure in the department store. By now, the current prevention and control measures have achieved satisfied effects.
DOI: 10.3760/cma.j.cn112338-20200221-00139
PubMed: 32133830
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pubmed:32133830Le document en format XML
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<author><name sortKey="Liu, J" sort="Liu, J" uniqKey="Liu J" first="J" last="Liu">J. Liu</name>
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</author>
<author><name sortKey="Zhang, Y" sort="Zhang, Y" uniqKey="Zhang Y" first="Y" last="Zhang">Y. Zhang</name>
<affiliation wicri:level="1"><nlm:affiliation>Epidemiology Working Group for COVID-19, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
<wicri:regionArea>Epidemiology Working Group for COVID-19, Tianjin Centers for Disease Control and Prevention, Tianjin 300011</wicri:regionArea>
<placeName><settlement type="city">Tianjin</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j">Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi</title>
<idno type="ISSN">0254-6450</idno>
<imprint><date when="2020" type="published">2020</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass></textClass>
</profileDesc>
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<front><div type="abstract" xml:lang="en"><b>Objective:</b>
To describe the epidemiological characteristics of a cluster of COVID-19 cases reported in Baodi district of Tianjin as of 18 February, 2020, which might be associated with the exposure in a local department store, and provide suggestions for prevention and control strategy development. <b>Methods:</b>
The basic characteristics, time and area distributions, clinical manifestations, epidemiological history and transmission mode of the COVID-19 cases associated with the department store exposure were analyzed. <b>Results:</b>
A total of 40 COVID-19 cases were associated with the department store exposure, accounting for 75.47% of the total confirmed cases (53 cases) reported in Baodi district. The cases were mainly at the age of 60 years or older (35.00%) and farmers (40.00%). The main clinical manifestations included fever (95.00%), cough (35.00%), and diarrhea (15.00%). The proportion of confirmed severe cases was 32.50%. The incidence curve showed that the incidence peak occurred on 31 January, 2020. Among the 40 cases, 6(15.00%) were department store employees, 19(47.50%) were customers and 15(37.50%) were close contacts (secondary cases). The first case occurred on 21 January, 2020, this case was a department store employee who had a purchasing history at whole sale markets in other provinces and cities before the onset, and 3 employees were still on duty after symptom onsets. The median of the incubation period of customer cases was 6 days, and the median of the interval between onset and medical treatment of customer cases was 7 days. <b>Conclusion:</b>
This was a cluster epidemic of COVID-19, which might be associated with the exposure in the department store. By now, the current prevention and control measures have achieved satisfied effects.</div>
</front>
</TEI>
</record>
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