ArticleGenome medicine2021
Intra-host variation and evolutionary dynamics of SARS-CoV-2 populations in COVID-19 patients.
Article in Genome medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers.
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Who cites it
101 citing papers in PubMed.
- SARS-CoV-2 intra-host variation shows evidence of transmission and convergent evolution in a university surveillance cohort.Microbial genomics · 2026Article
- Within-host SARS-CoV-2 diversity in immunocompromised patients during acute infection.Journal of virology · 2026Article
- SARS-CoV-2 intra-host viral diversity associated with host innate and vaccine-induced immunity in an obese mouse model.BMC infectious diseases · 2026Article
- Epitope-spanning antigenic variation reprograms immunodominance and broadens immunity in sequential influenza vaccination.Nature communications · 2026Article
- SARS-CoV-2 Intra-host Variation Shows Evidence of Transmission and Convergent Evolution in a University Surveillance Cohort.bioRxiv : the preprint server for biology · 2025Article
- Immunocompromised patients with persistent SARS-CoV-2 viral shedding ≥8 weeks, clinical outcomes, and virological dynamics: a retrospective multicenter cohort study, 2020-2024.Antimicrobial agents and chemotherapy · 2025Article
- Intra-host diversity of SARS-CoV-2 in children with long-term and short-term excretion in nasopharyngeal samples.BMC infectious diseases · 2025Article
- Genomic and epidemiologic characteristics of SARS-CoV-2 persistent infections in California, January 2021 - July 2023.PLoS pathogens · 2025Article
- Intra-host variation and transmission dynamics of SARS-CoV-2 Omicron outbreaks in Shandong, China.mSphere · 2025Article
- Broad-spectrum vaccines against various and evolving viruses: from antigen design to nanoparticle delivery.Journal of virology · 2025Review
- SARS-CoV-2 mutant spectrum complexity is an epidemiologically evolvable trait.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Signatures of omicron-like adaptation in early SARS-CoV-2 variants and chronic infection.Cell reports · 2025Article
- Rapid Emergence and Evolution of SARS-CoV-2 Intrahost Variants among COVID-19 Patients with Prolonged Infections, Singapore.Emerging infectious diseases · 2025Article
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- Phylogenetic meta-analysis of persistent SARS-CoV-2 infections in immunocompromised individuals highlights the challenges of robust evolutionary rate estimation caused by low genetic diversity.Virus evolution · 2025Article
- Advances in the structure-based design of protein vaccines for respiratory infectious diseases.Computational and structural biotechnology journal · 2025Review
- Whole genome characterization of Torque teno sus virus 1 (TTSuV1) in wild and domestic pigs: insights into genetic classification, host differentiation, and intra-host variation.Frontiers in microbiology · 2025Article
- Tracking cryptic SARS-CoV-2 hospital outbreak through quasispecies analysis.Virology journal · 2024Article
- Machine learning-enhanced immunopeptidomics applied to T-cell epitope discovery for COVID-19 vaccines.Nature communications · 2024Article
41 more citing papers are in PubMed but not listed here.
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34 authors.
Funding
Abstract
backgroundSince early February 2021, the causative agent of COVID-19, SARS-CoV-2, has infected over 104 million people with more than 2 million deaths according to official reports. The key to understanding the biology and virus-host interactions of SARS-CoV-2 requires the knowledge of mutation and evolution of this virus at both inter- and intra-host levels. However, despite quite a few polymorphic sites identified among SARS-CoV-2 populations, intra-host variant spectra and their evolutionary dynamics remain mostly unknown.
methodsUsing high-throughput sequencing of metatranscriptomic and hybrid captured libraries, we characterized consensus genomes and intra-host single nucleotide variations (iSNVs) of serial samples collected from eight patients with COVID-19. The distribution of iSNVs along the SARS-CoV-2 genome was analyzed and co-occurring iSNVs among COVID-19 patients were identified. We also compared the evolutionary dynamics of SARS-CoV-2 population in the respiratory tract (RT) and gastrointestinal tract (GIT).
resultsThe 32 consensus genomes revealed the co-existence of different genotypes within the same patient. We further identified 40 intra-host single nucleotide variants (iSNVs). Most (30/40) iSNVs presented in a single patient, while ten iSNVs were found in at least two patients or identical to consensus variants. Comparing allele frequencies of the iSNVs revealed a clear genetic differentiation between intra-host populations from the respiratory tract (RT) and gastrointestinal tract (GIT), mostly driven by bottleneck events during intra-host migrations. Compared to RT populations, the GIT populations showed a better maintenance and rapid development of viral genetic diversity following the suspected intra-host bottlenecks.
conclusionsOur findings here illustrate the intra-host bottlenecks and evolutionary dynamics of SARS-CoV-2 in different anatomic sites and may provide new insights to understand the virus-host interactions of coronaviruses and other RNA viruses.
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