ArticleMed (New York, N.Y.)2022
Monitoring of the SARS-CoV-2 Omicron BA.1/BA.2 lineage transition in the Swedish population reveals increased viral RNA levels in BA.2 cases.
Article in Med (New York, N.Y.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 22 citations in OpenAlex.
- Integrated Analysis of the 2022 SARS-CoV-2 Omicron Lineage Replacement Dynamics in Connecticut, US.Viruses · 2025Article
- Perspectives on SARS-CoV-2 Cases in Zoological Institutions.Veterinary sciences · 2024Review
- Impact of vaccinations, boosters and lockdowns on COVID-19 waves in French Polynesia.Nature communications · 2023Article
- Automated antigen assays display a high heterogeneity for the detection of SARS-CoV-2 variants of concern, including several Omicron sublineages.Medical microbiology and immunology · 2023Article
- Digital assay for rapid electronic quantification of clinical pathogens using DNA nanoballs.Science advances · 2023Article
- Omicron COVID-19 Case Estimates Based on Previous SARS-CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada.Emerging infectious diseases · 2023Article
- Correlates of protection and viral load trajectories in omicron breakthrough infections in triple vaccinated healthcare workers.Nature communications · 2023Article
- SARS-CoV-2 viral load and shedding kinetics.Nature reviews. Microbiology · 2023Review
- Viral load of SARS-CoV-2 Omicron BA.5 is lower than that of BA.2 despite the higher infectivity of BA.5.Immunity, inflammation and disease · 2023Article
- SARS-CoV-2 Omicron variants: burden of disease, impact on vaccine effectiveness and need for variant-adapted vaccines.Frontiers in immunology · 2023Review
- Article
- Modelling the medium-term dynamics of SARS-CoV-2 transmission in England in the Omicron era.Nature communications · 2022Article
- Behaviour, booster vaccines and waning immunity: modelling the medium-term dynamics of SARS-CoV-2 transmission in England in the Omicron era.medRxiv : the preprint server for health sciences · 2022Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThroughout the SARS-CoV-2 pandemic, multiple waves of variants of concern have swept across populations, leading to a chain of new and yet more contagious variants dominating COVID-19 cases. Here, we tracked the remarkably rapid shift from Omicron BA.1 to BA.2 sublineage dominance in the Swedish population in early 2022 at a day-by-day basis.
methodsUsing a custom SARS-CoV-2 Omicron BA.1 lineage-typing RT-PCR assay, we analyzed 174,933 clinical upper airway samples collected during January to March 2022.
findingsOur study demonstrates the feasibility and reliability of parallel lineage assignment of select variants at population scale, tracking the dominant sublineage transition from BA.1 to BA.2 at day-to-day resolution and uncovering nearly 2-fold higher levels of viral RNA in cases infected with Omicron BA.2 relative to BA.1.
conclusionsOur data provide unique insights into the Omicron BA.1 to BA.2 transition that occurred in Sweden during early 2022, and later, across the world. This may help to understand the increased transmissibility of the BA.2 variant.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.