Shorter serial intervals and incubation periods in SARS-CoV-2 variants than the SARS-CoV-2 ancestral strain
Zhanwei Du, Caifen Liu, Lin Wang, Yuan Bai, Eric H. Y. Lau, Peng Wu, Benjamin J. Cowling
Abstract
The Delta and Omicron variants have the pooled estimates of serial interval as 3.4 days (95% CI: 3.0, 3.7) and 3.1 days (95% CI: 2.9, 3.2), respectively; incubation periods as 4.8 days (95% CI: 3.9, 5.6) and 3.6 days (95% CI: 2.3, 4.9), respectively.
Topics & Concepts
MedicineSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)IncubationIncubation periodCoronavirus disease 2019 (COVID-19)2019-20 coronavirus outbreakConfidence intervalStrain (injury)VirologyInternal medicineOutbreakBiologyInfectious disease (medical specialty)DiseaseBiochemistryCOVID-19 epidemiological studiesSARS-CoV-2 detection and testingSARS-CoV-2 and COVID-19 Research