id author title date pages extension mime words sentences flesch summary cache txt cord-261672-0cresfn8 Kim, Sungchan Evaluation of COVID-19 epidemic outbreak caused by temporal contact-increase in South Korea 2020-05-14 .txt text/plain 1635 108 59 OBJECTIVES: On March 15, 2020, 61.3% of the confirmed cases of COVID-19 infection are associated with the worship service that was organized on February 9 in the Shincheonji Church of Jesus in Daegu, South Korea. METHOD: Using opened data of daily cumulative confirmed cases and deaths, the basic and effective reproduction numbers was estimated using a modified susceptible–exposed–infected–recovered-type epidemic model. The effective reproduction number increased approximately 20 times after the mass infections from the 31 st patient, which was confirmed on February 9 in the Shincheonji Church of Jesus, Daegu. However, the effective reproduction number decreased to less than unity after February 28 owing to the implementation of high-level preventive control interventions in South Korea, coupled with voluntary prevention actions by citizens. In this study, we aimed to evaluate the effects of mass infection due to temporal increases in contacts and assess the preventive control interventions using the confirmed cases and deaths data associated with COVID-19 in Korea. ./cache/cord-261672-0cresfn8.txt ./txt/cord-261672-0cresfn8.txt