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Epidemiological characteristics of COVID-19 in qingdao
Zhongguo Weishengtaxixue Zazhi / Chinese Journal of Microecology ; 32(5):586-590, 2020.
Article in Chinese | GIM | ID: covidwho-1497981
ABSTRACT
Objective To analyze the epidemiological characteristics of coronavirus disease 2019(COVID-19) in Qingdao. Methods All the patients diagnosed as COVID-19 in Qingdao from January 21, 2020 to March 3, 2020 were included. The demographic and epidemiological data were collected. The susceptible population, transmission model, basic reproduction number(R0), progress of epidemic situation, and preventive measures were analyzed. Results A total of 60 cases of COVID-19 were enrolled, including 27 imported cases and 33 locally transmitted cases. The proportion of females in locally transmitted cases was 69.7%, which was significantly higher than that of imported cases(X2=6.400, P=0.011). Three infected generations were found in locally transmitted cases. The quantity of infected cases had a decreasing trend with generation sequentially increased. The R0 value of all cases in Qingdao was 1.49. The R0 s of first, second and third generations were 1.38, 1.53 and 1.56, respectively. The model of transmission converted from family aggregation to close contacts. Conclusion Females are susceptible to COVID-19 in Qingdao. The trend of new daily cases is wavily declining and the epidemic has been basically controlled. It is necessary to do a good job in zoning, grading and precise prevention and control, strengthen the isolation and observation of foreign population to prevent the rebound of COVID-19.

Full text: Available Collection: Databases of international organizations Database: GIM Type of study: Observational study Language: Chinese Journal: Chinese Journal of Microecology Year: 2020 Document Type: Article

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Full text: Available Collection: Databases of international organizations Database: GIM Type of study: Observational study Language: Chinese Journal: Chinese Journal of Microecology Year: 2020 Document Type: Article