ArticleInternational journal of environmental research and public health2022
Shorter Incubation Period among Unvaccinated Delta Variant Coronavirus Disease 2019 Patients in Japan.
Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.
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Who cites it
21 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Assessing changes in incubation period, serial interval, and generation time of SARS-CoV-2 variants of concern: a systematic review and meta-analysis.BMC medicine · 2023Pooled it
- Rapid review and meta-analysis of serial intervals for SARS-CoV-2 Delta and Omicron variants.BMC infectious diseases · 2023Pooled it
- Incubation Period of COVID-19 Caused by Unique SARS-CoV-2 Strains: A Systematic Review and Meta-analysis.JAMA network open · 2022Pooled it
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- Evaluating strategies for global respiratory pandemic control at ports: a modelling study.BMJ public health · 2025Article
- Performance of and Severe Acute Respiratory Syndrome Coronavirus 2 Diagnostics Based on Symptom Onset and Close Contact Exposure: An Analysis From the Test Us at Home Prospective Cohort Study.Open forum infectious diseases · 2024Article
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- The optimisation of public health emergency governance: a simulation study based on COVID-19 pandemic control policy.Globalization and health · 2023Article
- Transmissibility of severe acute respiratory syndrome coronavirus 2 among household contacts of coronavirus disease 2019-positive patients: A community-based study in India.Influenza and other respiratory viruses · 2023Article
- Modeling the competitive transmission of the Omicron strain and Delta strain of COVID-19.Journal of mathematical analysis and applications · 2023Article
- SARS-CoV-2 spike ectodomain targets α7 nicotinic acetylcholine receptors.The Journal of biological chemistry · 2023Article
- SARS-CoV-2 Incubation Period during the Omicron BA.5-Dominant Period in Japan.Emerging infectious diseases · 2023Article
- SARS-CoV-2 viral load and shedding kinetics.Nature reviews. Microbiology · 2023Review
- Transmission Dynamics and Epidemiological Characteristics of the SARS-CoV-2 Delta Variant - Hunan Province, China, 2021.China CDC weekly · 2023Article
- Novel indicator for the spread of new coronavirus disease 2019 and its association with human mobility in Japan.Scientific reports · 2023Article
- The Association Between Clinical Severity and Incubation Period of SARS-CoV-2 Delta Variants: Retrospective Observational Study.JMIR public health and surveillance · 2022Observational
- Test-to-Stay After SARS-CoV-2 Exposure: A Mitigation Strategy for Optionally Masked K-12 Schools.Pediatrics · 2022Article
- SARS-CoV-2 infection in pediatric population before and during the Delta (B.1.617.2) and Omicron (B.1.1.529) variants era.Virology journal · 2022Review
- Shorter Incubation Period among COVID-19 Cases with the BA.1 Omicron Variant.International journal of environmental research and public health · 2022Article
- Determining SARS-CoV-2 non-infectivity state-A brief overview.Frontiers in public health · 2022Review
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Few studies have assessed incubation periods of the severe acute respiratory syndrome coronavirus 2 Delta variant. This study aimed to elucidate the transmission dynamics, especially the incubation period, for the Delta variant compared with non-Delta strains. We studied unvaccinated coronavirus disease 2019 patients with definite single exposure date from August 2020 to September 2021 in Japan. The incubation periods were calculated and compared by Mann-Whitney U test for Delta (with L452R mutation) and non-Delta cases. We estimated mean and percentiles of incubation period by fitting parametric distribution to data in the Bayesian statistical framework. We enrolled 214 patients (121 Delta and 103 non-Delta cases) with one specific date of exposure to the virus. The mean incubation period was 3.7 days and 4.9 days for Delta and non-Delta cases, respectively (
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