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1.
Article in Chinese | WPRIM | ID: wpr-923951

ABSTRACT

Objective To determine the epidemic characteristics of forty-two coronavirus disease 2019 (COVID-19) cluster outbreaks in Hangzhou city and provide scientific evidence for further prevention and control measures. Methods Data of the COVID-19 cluster outbreaks in Hangzhou were obtained from the National Public Health Emergency Management Information System. Epidemic characteristics were summarized by reviewing the epidemiological investigation reports. Results A total of forty-two COVID-19 cluster outbreaks were documented in Hangzhou in 2020, including 130 confirmed cases and 7 cases with asymptomatic infection. The majority occurred from January to February, 2020. Moreover, 92.86% (39/42) of the cluster outbreaks were familial transmission. The proportion of the cluster outbreaks involving 2 cases accounted for 54.7% (23/42). In the secondary cases, family members accounted for 84.15% (69/82). Conclusion The COVID-19 cluster outbreaks in Hangzhou mainly occur in families, and the majority of the secondary cases is family members.

2.
Article in Chinese | WPRIM | ID: wpr-923973

ABSTRACT

Objective To determine the epidemic characteristics of forty-two coronavirus disease 2019 (COVID-19) cluster outbreaks in Hangzhou city and provide scientific evidence for further prevention and control measures. Methods Data of the COVID-19 cluster outbreaks in Hangzhou were obtained from the National Public Health Emergency Management Information System. Epidemic characteristics were summarized by reviewing the epidemiological investigation reports. Results A total of forty-two COVID-19 cluster outbreaks were documented in Hangzhou in 2020, including 130 confirmed cases and 7 cases with asymptomatic infection. The majority occurred from January to February, 2020. Moreover, 92.86% (39/42) of the cluster outbreaks were familial transmission. The proportion of the cluster outbreaks involving 2 cases accounted for 54.7% (23/42). In the secondary cases, family members accounted for 84.15% (69/82). Conclusion The COVID-19 cluster outbreaks in Hangzhou mainly occur in families, and the majority of the secondary cases is family members.

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