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Typical case analysis of COVID-19 cluster epidemic in Shaanxi, 2020 #MMPMID32867425
Chen S; Zhang Y; Li C; Ning SS; Li XX; Zhu N; Nian YP; Cao L; Yang GJ; Wang WH; Liu YZ; Wang L; Lei FL; Liu F; Shen MW
Zhonghua Liu Xing Bing Xue Za Zhi 2020[Aug]; 41 (8): 1204-1209 PMID32867425show ga
Objective: By analyzed the transmission patterns of 4 out of the 51 COVID-19 cluster cases in Shaanxi province to provide evidences for the COVID-19 control and prevention. Methods: The epidemiological data of RT-PCR test-confirmed COVID-19 cases were collected. Transmission chain was drawn and the transmission process was analyzed. Results: Cluster case 1 contained 13 cases and was caused by a family of 5 who traveled by car to Wuhan and returned to Shaanxi. Cluster case 2 had 5cases and caused by initial patient who participated family get-together right after back from Wuhan while under incubation period. Cluster case 3 contained 10 cases and could be defined as nosocomial infection. Cluster case 4 contained 4 cases and occurred in work place. Conclusion: Higher contact frequency and smaller places were more likely to cause a small-scale COVID-19 cluster outbreak, with potential longer incubation period. COVID-19 control strategies should turn the attention to infection prevention and control in crowded places, management of enterprise resumption and prevention of nosocomial infection.
Zhonghua+Liu+Xing+Bing+Xue+Za+Zhi 2020 ; 41 (8): 1204-1209
