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| Open AccessMucosal prime-boost immunization with live murine pneumonia virus-vectored SARS-CoV-2 vaccine is protective in macaques
Immunization via the respiratory route is predicted to increase the effectiveness of SARS-CoV-2 vaccines. Here, Kaiser et al. describe a murine pneumonia virus vectored vaccine expressing spike protein, and show that intranasal immunization of male rhesus macaques provides good mucosal and systemic immunogenicity and efficacy.
- Jaclyn A. Kaiser
- , Christine E. Nelson
- & Cyril Le Nouën
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Article
| Open AccessThe airborne transmission of viruses causes tight transmission bottlenecks
Genomic analyses have indicated that a small number of virus particles usually found new infections. Here, the authors use a mathematical model to show that this small transmission bottleneck is a result of the physical processes of airborne virus emission, diffusion, and inhalation.
- Patrick Sinclair
- , Lei Zhao
- & Christopher J. R. Illingworth
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Article
| Open AccessBat-borne H9N2 influenza virus evades MxA restriction and exhibits efficient replication and transmission in ferrets
In this study, the authors report that bat H9N2 influenza A virus replicates and transmits in ferrets, efficiently infects human lung explant cultures, evades MxA antiviral activity in mice, and has low antigenic similarity to seasonal N2, meeting pre-pandemic criteria.
- Nico Joel Halwe
- , Lea Hamberger
- & Martin Beer
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Article
| Open AccessCross-species spill-over potential of the H9N2 bat influenza A virus
In this study, the authors report that a bat influenza A (H9N2) virus shows receptor binding features similar to avian influenza viruses, efficiently infects ex-vivo human respiratory cells and replicates in the lungs of mice and upper respiratory tract of ferrets following airborne transmission.
- Rabeh El-Shesheny
- , John Franks
- & Richard J. Webby
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Article
| Open AccessAmbient carbon dioxide concentration correlates with SARS-CoV-2 aerostability and infection risk
Carbon dioxide concentration has previously been used as a proxy for overall ventilation efficiency to indirectly estimate the risk of indoor SARS-CoV-2 transmission. Here, authors investigate whether the concentration of carbon dioxide also has a direct mechanistic role in improving transmission efficiency.
- Allen Haddrell
- , Henry Oswin
- & Jonathan P. Reid
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Article
| Open AccessTravel surveillance uncovers dengue virus dynamics and introductions in the Caribbean
Dengue is a major public health concern in the Americas, and the Caribbean can be a source for reintroduction and spread. Here, the authors use travel surveillance data and genomic epidemiology to reconstruct Dengue epidemic dynamics in the Caribbean from 2009-2022.
- Emma Taylor-Salmon
- , Verity Hill
- & Nathan D. Grubaugh
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Article
| Open AccessLoss of TRIM29 mitigates viral myocarditis by attenuating PERK-driven ER stress response in male mice
Knowledge of pathogenesis mechanisms and effective treatments for viral myocarditis is lacking. Here, Wang et al show that loss of TRIM29 and PERK inhibitor mitigate viral myocarditis by attenuating PERK-driven ER stress and ROS responses in male mice.
- Junying Wang
- , Wenting Lu
- & Junji Xing
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Article
| Open AccessMYADM binds human parechovirus 1 and is essential for viral entry
Host factors required for parechovirus entry are not well understood. Here, the authors identify MYADM as an essential host entry factor that directly binds human parechovirus 1 and that is required for PeV-A infection in cell lines and human gastrointestinal epithelial organoids.
- Wenjie Qiao
- , Christopher M. Richards
- & Jan E. Carette
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Article
| Open AccessA giant virus infecting the amoeboflagellate Naegleria
This is the first report on a virus infecting the amoeboflagellate Naegleria, including the lethal human pathogen N. fowleri. The new virus isolate, Catovirus naegleriensis (Naegleriavirus, NiV), shows hallmarks of giant viruses (Nucleocytoviricota) and unique adaptations to its protist host.
- Patrick Arthofer
- , Florian Panhölzl
- & Matthias Horn
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Article
| Open AccessLong-term monitoring of SARS-CoV-2 seroprevalence and variants in Ethiopia provides prediction for immunity and cross-immunity
Detailed data on SARS-CoV-2 dynamics in Africa remain limited. Here, the authors use longitudinal serology and SARS-CoV-2 sequencing data from Ethiopia between August 2020 and July 2022 to characterise circulating variants, identify infection pathways, and explore cross-immunity properties.
- Simon Merkt
- , Solomon Ali
- & Andreas Wieser
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Article
| Open AccessMulti-omics analysis reveals COVID-19 vaccine induced attenuation of inflammatory responses during breakthrough disease
Here, Drury et al study gene, microRNA and protein expression during COVID-19, in a randomised controlled trial of ChAdOx1 nCoV19 vaccine and find that ChAdOx1 nCoV-19 attenuates the inflammatory response, thought to be the basis for severe COVID-19.
- Ruth E. Drury
- , Susana Camara
- & Daniel O’Connor
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Article
| Open AccessAn ancestral SARS-CoV-2 vaccine induces anti-Omicron variants antibodies by hypermutation
Repeat vaccination with COVID-19 mRNA vaccines has been shown to increase breadth of the antibody response. Here the authors demonstrate that B cell clones induced by the ancestral COVID-19 vaccine develop into daughter clones with different reactivity to individual SARS-CoV-2 variants through the accumulation of somatic hypermutations.
- Seoryeong Park
- , Jaewon Choi
- & Junho Chung
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Article
| Open AccessDeviations in RSV epidemiological patterns and population structures in the United States following the COVID-19 pandemic
Non-pharmaceutical interventions for COVID-19 also impacted the transmission of other viruses including respiratory syncytial virus (RSV). Here the authors describe the changing epidemiology, clinical severity, and genetic diversity of RSV in Chicago, Illinois, from July 2010 to April 2023.
- Estefany Rios-Guzman
- , Lacy M. Simons
- & Judd F. Hultquist
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Article
| Open AccessMonkeypox virus genomic accordion strategies
The 2023 monkeypox outbreak was caused by a subclade IIb monkeypox virus (MPXV). Here, using advanced sequencing techniques, the authors identify variations on low-complexity regions of the MPXV genome and describe their potential as evolutionary drivers.
- Sara Monzón
- , Sarai Varona
- & Gustavo Palacios
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Article
| Open AccessImprovement of immune dysregulation in individuals with long COVID at 24-months following SARS-CoV-2 infection
Post-acute sequelae of COVID (PASC) or long-COVID can affect a proportion of those infected but this is not well understood. Here the authors perform a single cell transcriptomics analysis of immune cells from long-COVID patients at 24 months and find that cell changes observed at 3 and 8 months do not persist to 24 months.
- Chansavath Phetsouphanh
- , Brendan Jacka
- & Gail V. Matthews
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Article
| Open AccessData-driven recombination detection in viral genomes
Here, the authors present RecombinHunt, a computational method based on big data analysis, that enhances community-based detection of recombinant viral lineages.
- Tommaso Alfonsi
- , Anna Bernasconi
- & Stefano Ceri
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Article
| Open AccessSynergistic effect of two human-like monoclonal antibodies confers protection against orthopoxvirus infection
In this study, the authors show that a single dose of a combination of two human-like monoclonal antibodies protect mice in therapeutic treatment against challenges with ectromelia virus and monkeypox virus. Combination treatment provided more effective viral clearance than single antibody treatment.
- Hadas Tamir
- , Tal Noy-Porat
- & Tomer Israely
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Matters Arising
| Open AccessReply to: Population genetic considerations regarding the interpretation of within-patient SARS-CoV-2 polymorphism data
- Chase W. Nelson
- , Leo L. M. Poon
- & Haogao Gu
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Matters Arising
| Open AccessPopulation genetic considerations regarding the interpretation of within-patient SARS-CoV-2 polymorphism data
- Vivak Soni
- , John W. Terbot II
- & Jeffrey D. Jensen
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Article
| Open AccessEmerging variants develop total escape from potent monoclonal antibodies induced by BA.4/5 infection
Many emerging SARS-CoV-2 variants partially escape the humoral immune response. Here, Liu et al. characterize 28 antibodies from BA.4/5 breakthrough infections and find attrition of neutralization and complete loss of function for variants with Spike mutations at positions 455 and 456.
- Chang Liu
- , Raksha Das
- & Gavin R. Screaton
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Article
| Open AccessDiversity and potential host-interactions of viruses inhabiting deep-sea seamount sediments
Little is known about viral communities in deep-sea seamounts. In this study, the authors performed metagenomic and virome analysis from sediments in the western Pacific Ocean and characterize the diversity, distribution and potential ecological roles of viruses in deep-sea seamount sediments.
- Meishun Yu
- , Menghui Zhang
- & Min Jin
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Article
| Open AccessPerinatal outcomes after admission with COVID-19 in pregnancy: a UK national cohort study
The impacts of maternal SARS-CoV-2 infection on newborns are not well understood. Here, the authors perform a national cohort study using data on births in the UK from March 2020—March 2022 and find that moderate to severe maternal COVID-19 was associated with adverse perinatal outcomes.
- Hilde Marie Engjom
- , Rema Ramakrishnan
- & Marian Knight
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Article
| Open AccessPositive selection underlies repeated knockout of ORF8 in SARS-CoV-2 evolution
SARS-CoV-2 constantly evolves but the roles of resulting mutations are not always clear. In this study, the authors report that ORF8 knockout confers a fitness advantage to SARS-CoV-2 using genomic surveillance data, highlighting how different types of adaptations across the SARS-CoV-2 genome can drive variant fitness.
- Cassia Wagner
- , Kathryn E. Kistler
- & Trevor Bedford
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Article
| Open AccessA plant NLR receptor employs ABA central regulator PP2C-SnRK2 to activate antiviral immunity
Huang et al. show how plant Sw-5b NLR mimics the ABA receptor to activate ABA-dependent antiviral immunity via the PP2C-SnRK2 complex. They reveal that Sw-5b NLR induces ABA accumulation, upregulates ABA response genes, and triggers defense against viral infections by releasing SnRK2 from PP2C inhibition.
- Shen Huang
- , Chunli Wang
- & Xiaorong Tao
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Article
| Open AccessStructural basis for dimerization of a paramyxovirus polymerase complex
The structure and function of polymerase dimers of non-segmented, negative-strand RNA viruses are poorly understood. Here, this study presents the structural basis for dimerization of a paramyxovirus L–P polymerase and its role in genome replication.
- Jin Xie
- , Mohamed Ouizougun-Oubari
- & Shuai Chen
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Article
| Open AccessImmunoglobulin G N-glycan markers of accelerated biological aging during chronic HIV infection
In this study, Giron et al. find that people living with chronic HIV experience accelerated aging-associated alterations in antibody glycans. These alterations, attributed to senescence enzymes, predict comorbidities and reduce the antiviral function of antibodies.
- Leila B. Giron
- , Qin Liu
- & Mohamed Abdel-Mohsen
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Article
| Open AccessVaccination impairs de novo immune response to omicron breakthrough infection, a precondition for the original antigenic sin
Immune imprinting can affect the response to future infection with pathogen variants. Here, Pušnik et. al. demonstrate that previous vaccination with wild-type SARS-CoV-2 vaccine hampers the formation of an immune response to mutated regions of omicron surface proteins following omicron breakthrough infection.
- Jernej Pušnik
- , Jasmin Zorn
- & Hendrik Streeck
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Article
| Open AccessPotent human neutralizing antibodies against Nipah virus derived from two ancestral antibody heavy chains
Nipah virus is a WHO priority pathogen, and there is currently no approved drug for clinical therapy. Here, the authors identified potent human neutralizing antibodies that block receptor binding and provide protection against NiV infection in vivo.
- Li Chen
- , Mengmeng Sun
- & Sandra Chiu
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Article
| Open AccessProbing altered receptor specificities of antigenically drifting human H3N2 viruses by chemoenzymatic synthesis, NMR, and modeling
Binding modes of antigenically drifted hemagglutinins of human influenza A viruses have been determined by NMR using synthetic N-glycans having 13C-labeled monosaccharides to pinpoint which monosaccharides of extended LacNAc chains engage with the HAs.
- Luca Unione
- , Augustinus N. A. Ammerlaan
- & Geert-Jan Boons
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Article
| Open AccessOrigin and dispersal history of Hepatitis B virus in Eastern Eurasia
Hepatitis B virus is an ancient human pathogen that dates back more than 10,000 years. Here, the authors investigate the evolutionary history of the virus in Eastern Eurasia by sequencing 34 genomes dating from approximately 400–5,000 years ago and comparing them with other contemporary sequences.
- Bing Sun
- , Aida Andrades Valtueña
- & Yinqiu Cui
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Article
| Open AccessMonoclonal antibodies targeting sites in respiratory syncytial virus attachment G protein provide protection against RSV-A and RSV-B in mice
Effective antibodies targeting various respiratory syncytial virus (RSV) proteins are needed to address public health burden of RSV. Here the authors shows that in addition to the currently approved F-targeting monoclonal antibodies, anti-G cross-reactive monoclonal antibodies to RSV-A and RSV-B strains can provide cross-protection and prevent from RSV disease.
- Youri Lee
- , Laura Klenow
- & Surender Khurana
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Article
| Open AccessMaternal hybrid immunity and risk of infant COVID-19 hospitalizations: national case-control study in Israel
Maternal anti-SARS-CoV-2 antibodies can provide protection against severe COVID-19 in infants, but the relative protection conferred by maternal infection, vaccination, and hybrid immunity is unknown. Here, the authors use data from Israel and show that infants born to mothers with hybrid immunity had lowest rates of COVID-19 hospitalisation.
- Joshua Guedalia
- , Michal Lipschuetz
- & Ofer Beharier
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Article
| Open AccessIncident allergic diseases in post-COVID-19 condition: multinational cohort studies from South Korea, Japan and the UK
SARS-CoV-2 infection has been linked to various persistent or new-onset health consequences, including disruption of the immune system. Here, the authors investigate the risk of new-onset allergic diseases following SARS-CoV-2 infection using data from South Korea, Japan, and the UK.
- Jiyeon Oh
- , Myeongcheol Lee
- & Dong Keon Yon
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Article
| Open AccessHidden diversity and potential ecological function of phosphorus acquisition genes in widespread terrestrial bacteriophages
Soil viruses could have a disproportionate role in ecosystem functioning. Here, the authors combine multiple data and approaches to explore diversity and distribution of P-acquisition genes encoded by soil bacteriophages, suggesting the importance of viral auxiliary metabolism for nutrient cycling.
- Jie-Liang Liang
- , Shi-wei Feng
- & Jin-tian Li
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Article
| Open AccessThe SARS-CoV-2 neutralizing antibody response to SD1 and its evasion by BA.2.86
Due to the focus of vaccination on the SARS CoV-2 spike protein, spike has been associated with high levels of viral mutation and subsequent immune escape. Here the authors study a conserved epitope in SARS CoV-2 sub-domain-1 and characterise the neutralising antibody response and evasion in contemporary SARS COV-2 viral strains.
- Daming Zhou
- , Piyada Supasa
- & Gavin R. Screaton
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Article
| Open AccessTrade-offs shaping transmission of sylvatic dengue and Zika viruses in monkey hosts
Hanley et al show that transmission of dengue and Zika virus from Old and New World monkeys is shaped by an immunologically-mediated trade-off between magnitude and duration of replication. Patterns of Zika transmission suggests high risk of spillback into neotropical monkeys.
- Kathryn A. Hanley
- , Hélène Cecilia
- & Shannan L. Rossi
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Article
| Open AccessStructure of the intact tail machine of Anabaena myophage A-1(L)
The Myoviridae cyanophage A-1(L) specifically infects the model cyanobacteria Anabaena sp. PCC 7120. Here, authors present the high-resolution cryo-EM structure of its intact tail machine, and identify multiple hydrolytic and binding modules.
- Rong-Cheng Yu
- , Feng Yang
- & Cong-Zhao Zhou
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Article
| Open AccessPrior infection with unrelated neurotropic virus exacerbates influenza disease and impairs lung T cell responses
Co-infections are much less studied than single pathogen infections. Here, the authors show that co-infection with two unrelated viruses, neurotropic Semliki Forest virus and influenza A virus, exacerbates influenza-related lung pathology and prolongs lung virus replication in a mouse model.
- Isabelle Jia-Hui Foo
- , Brendon Y. Chua
- & Lukasz Kedzierski
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Article
| Open AccessParechovirus infection in human brain organoids: host innate inflammatory response and not neuro-infectivity correlates to neurologic disease
In comparison to PeV-A1, infection with PeV-A3 is associated with neurological illness in infants. Here, using brain organoids, the authors suggest that the innate inflammatory response as the underlying reason, and not replication kinetics.
- Pamela E. Capendale
- , Inés García-Rodríguez
- & Katja C. Wolthers
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Article
| Open AccessLong-term effects of Omicron BA.2 breakthrough infection on immunity-metabolism balance: a 6-month prospective study
Here the authors study recovery from mild to moderate Omicron breakthrough infection at six months post infection. Serum proteomics, PBMC single-cell transcriptomics and clinical parameters indicate slow recovery with coagulation abnormalities and an imbalance of the immune response and metabolism remaining.
- Yanhua Li
- , Shijie Qin
- & George Fu Gao
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Article
| Open AccessStructure of orthoreovirus RNA chaperone σNS, a component of viral replication factories
Orthoreovirus σNS, essential for forming viral replication factories, has RNA chaperone activity that requires the association of σNS dimers into filamentous structures stabilized by domain-swapping interactions of the flexible N-terminal arms.
- Boyang Zhao
- , Liya Hu
- & B. V. Venkataram Prasad
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Article
| Open AccessUptake of COVID-19 vaccinations amongst 3,433,483 children and young people: meta-analysis of UK prospective cohorts
COVID-19 vaccination has been recommended for children and young people (aged 5–17) in the UK since 2021/2022. In this study, the authors use linked health and administrative data to estimate vaccine uptake in this age group and show that age and adult household vaccination status are associated with uptake.
- Sarah J. Aldridge
- , Utkarsh Agrawal
- & Rhiannon K. Owen
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Article
| Open AccessClearance of persistent SARS-CoV-2 associates with increased neutralizing antibodies in advanced HIV disease post-ART initiation
There is limited data on immune factors contributing to SARS-CoV-2 viral clearance in people living with HIV. Here, the authors show that re-emergence of the neutralizing antibody response may be key to clearing persistent SARS-CoV-2 infection in ART-mediated recovery from immunosuppression in advanced HIV disease.
- Farina Karim
- , Catherine Riou
- & Alex Sigal
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Article
| Open AccessCryo-EM structures of Banna virus in multiple states reveal stepwise detachment of viral spikes
Here, Li et al. provide the cryo-EM structures of Banna virus (BAV) in four configurations. VP10 functions as a unique cementing protein to stabilize the capsid shells and spikes in the full particles and during cell entry. Structural transition from BAV virions to cores is a stepwise process of dissociation of receptor binding protein VP9 and membrane penetration protein VP4.
- Zhiqiang Li
- , Han Xia
- & Sheng Cao
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Article
| Open AccessDistinct evolution of SARS-CoV-2 Omicron XBB and BA.2.86/JN.1 lineages combining increased fitness and antibody evasion
SARS-CoV-2 evolved into several sublineages harboring different mutations in spike. Here, the authors isolate and characterize nine SARS-CoV-2 variants and show that EG.5.1.3 has highest fitness in nasal epithelial cells, while JN.1 shows lower affinity to ACE2 and higher immune evasion compared to BA.2.86.1.
- Delphine Planas
- , Isabelle Staropoli
- & Olivier Schwartz
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Article
| Open AccessInhalation of ACE2-expressing lung exosomes provides prophylactic protection against SARS-CoV-2
Inhibiting SARS-CoV-2 interaction with ACE2 is a promising antiviral strategy. Here, the authors show that exosomes derived from human lung spheroid cells expressing hACE2 accumulate in the lung following prophylactic inhalation to bind and neutralize SARS-CoV-2 and protect mice from SARS-CoV-2-induced disease.
- Zhenzhen Wang
- , Shiqi Hu
- & Ke Cheng
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Article
| Open AccessN6-methyladenosine modification is not a general trait of viral RNA genomes
A comprehensive analysis found no evidence of m6A modifications in the genome of the cytoplasmic RNA viruses CHIKV and DENV, challenging the current notion that m6A modification is a general feature of cytoplasmic RNA viruses.
- Belinda Baquero-Pérez
- , Ivaylo D. Yonchev
- & Juana Díez
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Article
| Open AccessQuantifying how single dose Ad26.COV2.S vaccine efficacy depends on Spike sequence features
SARS-CoV-2 variants with mutations in spike have emerged during the pandemic. Magaret et al. show that in Latin America, efficacy of the Ad26.COV2.S vaccine against moderate to severe–critical COVID-19 varied by sequence features, antibody escape scores, and neutralization impacting features of the SARS-CoV-2 variant.
- Craig A. Magaret
- , Li Li
- & Peter B. Gilbert
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Article
| Open AccessImpact of vaccination on the association of COVID-19 with cardiovascular diseases: An OpenSAFELY cohort study
SARS-CoV-2 infection is associated with an increased risk of arterial and venous thrombotic events. Here, the authors investigate the degree to which this association is modified by virus variant and vaccination using electronic health record data for ~18 million adults in England.
- Genevieve I. Cezard
- , Rachel E. Denholm
- & Venexia Walker
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