ArticleCell2021
Early introductions and transmission of SARS-CoV-2 variant B.1.1.7 in the United States.
Article in Cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
99 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Understanding the Secret of SARS-CoV-2 Variants of Concern/Interest and Immune Escape.Frontiers in immunology · 2021Pooled it
- Rapid Phylogeographic Inference of Regional Epidemic Dynamics for Routine Genomic Surveillance.Research square · 2026Article
- Containment of a Multi-index B.1.1.7 Outbreak on a University Campus Through a Genomically Informed Public Health Response.Open forum infectious diseases · 2026Article
- Quantifying the spatiotemporal dynamics of the first two epidemic waves of SARS-CoV-2 infections in the United States.PLoS computational biology · 2026Article
- Overview of SARS-CoV-2 genomic surveillance in Central America and the Dominican Republic from February 2020 to January 2023: the impact of PAHO and COMISCA's collaborative efforts.Frontiers in public health · 2026Article
- Disparities in COVID-19 mortality in the United States, 2020-2023.BMC public health · 2025Article
- Analysis of the prevalence, spread, and mutation patterns of SARS-CoV-2 variants: data from COVID-19 testing expansion strategy study in salvador, Northeast Brazil.Scientific reports · 2025Article
- Tracing SARS-CoV-2 clusters across local scales using genomic data.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Virus Detection by CRISPR-Cas9-Mediated Strand Displacement in a Lateral Flow Assay.ACS applied bio materials · 2025Article
- Characterizing spatial epidemiology in a heterogeneous transmission landscape using the spatial transmission count statistic.Communications medicine · 2025Article
- Large-Scale Genomic Analysis of SARS-CoV-2 Omicron BA.5 Emergence, United States.Emerging infectious diseases · 2025Article
- Effectiveness of mRNA COVID-19 Vaccines and Hybrid Immunity in Preventing SARS-CoV-2 Infection and Symptomatic COVID-19 Among Adults in the United States.The Journal of infectious diseases · 2025Article
- Article
- Phylogenetic insights into the early spread of the SARS-CoV-2 Alpha variant across Europe.Virus evolution · 2025Article
- The importance of epistasis in the evolution of viral pathogens.Virus evolution · 2025Review
- SARS-CoV-2 introductions to the island of Ireland: a phylogenetic and geospatiotemporal study of infection dynamics.Genome medicine · 2024Article
- From Emergence to Evolution: Dynamics of the SARS-CoV-2 Omicron Variant in Florida.Pathogens (Basel, Switzerland) · 2024Article
- SARS-CoV-2 Illumina GeNome Assembly Line (SIGNAL), a Snakemate workflow for rapid and bulk analysis of Illumina sequencing of SARS-CoV-2 genomes.NAR genomics and bioinformatics · 2024Article
- Routes of importation and spatial dynamics of SARS-CoV-2 variants during localized interventions in Chile.PNAS nexus · 2024Article
- Towards geospatially-resolved public-health surveillance via wastewater sequencing.Nature communications · 2024Article
39 more citing papers are in PubMed but not listed here.
Corrections and comments
- Commented on by
- Update of
Authors and funding
50 authors.
Funding
Abstract
The emergence and spread of SARS-CoV-2 lineage B.1.1.7, first detected in the United Kingdom, has become a global public health concern because of its increased transmissibility. Over 2,500 COVID-19 cases associated with this variant have been detected in the United States (US) since December 2020, but the extent of establishment is relatively unknown. Using travel, genomic, and diagnostic data, we highlight that the primary ports of entry for B.1.1.7 in the US were in New York, California, and Florida. Furthermore, we found evidence for many independent B.1.1.7 establishments starting in early December 2020, followed by interstate spread by the end of the month. Finally, we project that B.1.1.7 will be the dominant lineage in many states by mid- to late March. Thus, genomic surveillance for B.1.1.7 and other variants urgently needs to be enhanced to better inform the public health response.
Indexed as
Identifiers
What OpenQuestion holds
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.