Serial Interval and Transmission Dynamics during SARS-CoV-2 Delta Variant Predominance, South Korea

Abstract

We estimated mean serial interval and superspreading potential for the Delta variant of severe acute respiratory syndrome coronavirus 2 in South Korea. Intervals were similar for the first (3.7 days) and second (3.5 days) study periods. Risk for superspreading events was also similar; 23% and 25% of cases, respectively, seeded 80% of transmissions.

Keywords

• COVID-19
• Delta variant
• transmissibility
• superspreading
• South Korea
• coronavirus disease