Osong Public Health Res Perspect.  2020 Apr;11(2):81-84. 10.24171/j.phrp.2020.11.2.04.

Coronavirus Disease-19: Summary of 2,370 ContactInvestigations of the First 30 Cases in the Republic of Korea

• COVID-19 National Emergency Response Center
• Epidemiology and Case Management Team
• Korea Centers for Disease Control and Prevention

• KMID: 2500310
• DOI: http://doi.org/10.24171/j.phrp.2020.11.2.04

Abstract

Between January 24th and March 10th, a total of 2,370 individuals had contact with the first 30 cases of COVID-19. There were 13 individuals who contracted COVID-19 resulting in a secondary attack rate of 0.55% (95% CI 0.31-0.96). There were 119 household contacts, of which 9 individuals developed COVID-19 resulting in a secondary attack rate of 7.56% (95% CI 3.7-14.26).

Keyword

contact tracing; COVID-19; epidemiology; SARS-CoV-2