Abstract:Objective To analyze and discuss the infection spectrum, distribution characteristics, source of infection and transmission features of the COVID-19 epidemic in Shaoyang City. Methods Epidemiological surveys were conducted among confirmed cases and asymptomatic infected persons. Determination and medical observation and management of close contacts were performed. The WPS Office Personal Edition was used for data collation analysis and chart drawing, and Epi Info software for statistical analysis. Results In total, 102 COVID-19 confirmed cases and 13 cases of asymptomatic infection were reported in Shaoyang City. The infection spectrum included asymptomatic infection, mild type, common type, severe type and critical type (including death cases). There were 17 (14.78%) severe cases and 5 (4.35%) critical cases. The crude case fatality rate was 0.87%. The case fatality rate for the age group of 60 years and above was 5.88%. The proportion of asymptomatic infections in the local case group accounted for 18.84%. The epidemic lasted for 33 consecutive days, and the imported and local infection cases were simultaneously reported in 27 days. There were 46 (40.00%) imported cases and 69 (60.00%) local infection cases. The imported cases were mainly from Wuhan (78.26%), and the source of transmission in the local infection cases was mainly from families (76.81%). Conclusion The outbreak of COVID-19 in Shaoyang City was characterized by an imported and localized clustering epidemic and a few cases of unknown source of infection. No obvious community transmission occurred. The proportion of asymptomatic infections might be higher than 18.57%. Families were the main place for the early spread of the epidemic.