ABSTRACT
Objective To analyze the epidemic characteristics, related factors and prevention and control effects of COVID-19 in Zaoyang City, and to provide references for the prevention and control of COVID-19 in the future. Methods Data on cases and their close contacts was collected using survey questionnaires. The data was summarized and the relevant factors were statistically analyzed with SPSS17.0. Results A total of 194 confirmed cases of COVID-19 were reported in Zaoyang City, including 4 deaths. The reported incidence was 17.13/100,000, and the case mortality rate was 2.06%. The onset of the first case to the last case lasted for 35 days. The peak incidence of local cases occurred 3-5 days after the peak of the imported cases. The average age of onset was 45.40 years, and the proportion of people aged 60 years and above was 16.49%. 46.39% of the cases had travel history in Wuhan and 27.32% had contact history back in Zaoyang. Among the close contacts, the incidence of the disease was highest between husband and wife as well as parents and children. There was no statistical significance in the incidence rate between those who traveled in a private car from Wuhan to Zaoyang with cases in the incubation period and those who did not. The cough rate of the first case in the family was significantly higher in cluster cases than that in sporadic cases. After the implementation of strict closed management, the course of the disease before admission was shortened by 2.2d, and the breakthrough cases accounted for only 12.50% of the local cases. Conclusion A history of living in Wuhan and a history of returning to Zaoyang with exposure were major risk factors. Family prevention could effectively reduce the incidence of the disease. Cases with cough symptoms were more likely to cause cluster outbreaks. The prevention and control measures in Zaoyang City are scientific, timely and accurate, which effectively controlled the occurrence of local cases.