ArticleCell reports2021
An intranasal vaccine durably protects against SARS-CoV-2 variants in mice.
Article in Cell reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 1 of them a synthesis that pooled it.
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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
87 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Mucosal immune response in biology, disease prevention and treatment.Signal transduction and targeted therapy · 2025Pooled it
- Safety and efficacy of the intranasal spray SARS-CoV-2 vaccine dNS1-RBD: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial.The Lancet. Respiratory medicine · 2023Trial
- Intranasal boosting induces variant-specific responses in SARS-CoV-2 vaccine-imprinted mice.Nature communications · 2026Article
- B cell αv integrin regulates tissue specialization and clonal expansion of lung germinal center and memory B cells after viral infection.Science advances · 2026Article
- Effects of cellular receptors on the vaccine efficacies of adenovirus vector-based vaccines following intramuscular and intranasal administration.Scientific reports · 2026Article
- Identification of immunodominant T cell epitopes in SARS-CoV-2 spike protein in Syrian hamsters.Journal of immunology (Baltimore, Md. : 1950) · 2026Article
- Itaconate reduces viral endocytosis by targeting Cys128 of the adaptor-related protein complex 1 gamma 1 subunit in the host, providing a novel target for antiviral drug development.Molecular biomedicine · 2025Article
- Mucosal vaccination with long-form TSLP induces migratory cDC1-mediated adaptive immunity against SARS-CoV-2 infection.Journal of virology · 2025Article
- B cell αv integrin regulates tissue specialization and clonal expansion of lung germinal center and memory B cells after viral infection.bioRxiv : the preprint server for biology · 2025Article
- Mucosal Vaccination Against SARS-CoV-2 Using Human ProbioticVaccines · 2025Article
- Systems serology-based comparison of humoral immune responses induced by liposome or aluminum hydroxide adjuvanted SARS-CoV-2 spike protein.Scientific reports · 2025Article
- Beyond the Pandemic Era: Recent Advances and Efficacy of SARS-CoV-2 Vaccines Against Emerging Variants of Concern.Vaccines · 2025Review
- Calboxyvinyl polymer adjuvant enhances respiratory iga responses through mucosal and systemic administration.NPJ vaccines · 2025Article
- Antibody Avidity Maturation Following Booster Vaccination with an Intranasal Adenovirus Salnavac Vaccine.Vaccines · 2024Article
- Mucosal adenovirus vaccine boosting elicits IgA and durably prevents XBB.1.16 infection in nonhuman primates.Nature immunology · 2024Article
- Sequential early-life viral infections modulate the microbiota and adaptive immune responses to systemic and mucosal vaccination.PLoS pathogens · 2024Article
- Intranasal Multiepitope PD-L1-siRNA-Based Nanovaccine: The Next-Gen COVID-19 Immunotherapy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Compartment-specific antibody correlates of protection to SARS-CoV-2 Omicron in macaques.iScience · 2024Article
- Beyond COVID-19: the promise of next-generation coronavirus vaccines.Npj viruses · 2024Review
- Article
27 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
19 authors.
Funding
Abstract
SARS-CoV-2 variants that attenuate antibody neutralization could jeopardize vaccine efficacy. We recently reported the protective activity of an intranasally administered spike protein-based chimpanzee adenovirus-vectored vaccine (ChAd-SARS-CoV-2-S) in animals, which has advanced to human trials. Here, we assessed its durability, dose response, and cross-protective activity in mice. A single intranasal dose of ChAd-SARS-CoV-2-S induced durably high neutralizing and Fc effector antibody responses in serum and S-specific IgG and IgA secreting long-lived plasma cells in the bone marrow. Protection against a historical SARS-CoV-2 strain was observed across a 100-fold vaccine dose range and over a 200-day period. At 6 weeks or 9 months after vaccination, serum antibodies neutralized SARS-CoV-2 strains with B.1.351, B.1.1.28, and B.1.617.1 spike proteins and conferred almost complete protection in the upper and lower respiratory tracts after challenge with variant viruses. Thus, in mice, intranasal immunization with ChAd-SARS-CoV-2-S provides durable protection against historical and emerging SARS-CoV-2 strains.
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