Serial interval and basic reproduction number of SARS-CoV-2 Omicron variant in South Korea

South Korea is experiencing the community transmission of the SARS-CoV-2 Omicron variant (B.1.1.529). We estimated that the mean (± standard deviation) serial interval was 2.22 (± 1.62) days, and the basic reproduction number was 1.90 (95% Credible Interval, 1.50–2.43) for the Omicron variant outbreak in South Korea.