Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea

Liu, Y; Zhao, S; Ryu, S; Ran, J; Fan, J; He, D

doi:10.1016/j.onehlt.2022.100425

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/99719

Title:	Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
Authors:	Liu, Y Zhao, S Ryu, S Ran, J Fan, J He, D
Issue Date:	Dec-2022
Source:	One health, Dec. 2022, v. 15, 100425
Abstract:	Based on exposure history and symptom onset of 22 Omicron BA.1 cases in South Korea from November to December 2021, we estimated mean incubation period of 3.5 days (95% CI: 2.5, 3.8), and then compared to that of 6.5 days (95% CI: 5.3, 7.7) for 64 cases during Delta variants' dominance in June 2021. For Omicron BA.1 variants, we found that 95% of symptomatic cases developed clinical conditions within 6.0 days (95% CI: 4.3, 6.6) after exposure. Thus, a shorter quarantine period may be considered based on symptoms, or similarly laboratory testing, when Omicron BA.1 variants are circulating.
Keywords:	Incubation period Omicro BA.1 variant Delta variant Quarantine
Publisher:	Elsevier B.V.
Journal:	One health
EISSN:	2352-7714
DOI:	10.1016/j.onehlt.2022.100425
Rights:	© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). The following publicationLiu, Y., Zhao, S., Ryu, S., Ran, J., Fan, J., & He, D. (2022). Estimating the incubation period of SARS-CoV-2 omicron BA.1 variant in comparison with that during the delta variant dominance in south korea. One Health, 15, 100425 is available at https://doi.org/10.1016/j.onehlt.2022.100425.
Appears in Collections:	Journal/Magazine Article