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

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...

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Autores principales: Liu, Yanwen, Zhao, Shi, Ryu, Sukhyun, Ran, Jinjun, Fan, Junhua, He, Daihai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9349028/
https://www.ncbi.nlm.nih.gov/pubmed/35942477
http://dx.doi.org/10.1016/j.onehlt.2022.100425
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author Liu, Yanwen
Zhao, Shi
Ryu, Sukhyun
Ran, Jinjun
Fan, Junhua
He, Daihai
author_facet Liu, Yanwen
Zhao, Shi
Ryu, Sukhyun
Ran, Jinjun
Fan, Junhua
He, Daihai
author_sort Liu, Yanwen
collection PubMed
description 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.
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spelling pubmed-93490282022-08-04 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, Yanwen Zhao, Shi Ryu, Sukhyun Ran, Jinjun Fan, Junhua He, Daihai One Health Short Communication 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. Elsevier 2022-08-04 /pmc/articles/PMC9349028/ /pubmed/35942477 http://dx.doi.org/10.1016/j.onehlt.2022.100425 Text en © 2022 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Short Communication
Liu, Yanwen
Zhao, Shi
Ryu, Sukhyun
Ran, Jinjun
Fan, Junhua
He, Daihai
Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
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
title_full Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
title_fullStr Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
title_full_unstemmed Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
title_short Estimating the incubation period of SARS-CoV-2 Omicron BA.1 variant in comparison with that during the Delta variant dominance in South Korea
title_sort estimating the incubation period of sars-cov-2 omicron ba.1 variant in comparison with that during the delta variant dominance in south korea
topic Short Communication
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9349028/
https://www.ncbi.nlm.nih.gov/pubmed/35942477
http://dx.doi.org/10.1016/j.onehlt.2022.100425
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