ArticleNPJ vaccines2022
Antigenic comparison of the neuraminidases from recent influenza A vaccine viruses and 2019-2020 circulating strains.
Article in NPJ vaccines, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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
10 citing papers in PubMed, 19 citations in OpenAlex.
- Neuraminidase-inhibiting antibodies boosted by H1N1pdm infection cross-react differently with H5N1 of clades 2.3.4.4b and 2.3.2.1a.Emerging microbes & infections · 2026Article
- Population Immunity to Influenza Neuraminidase: From Immune Imprinting to Pandemic Preparedness.Vaccines · 2026Review
- INAAC: An affinity chromatography strategy enabling characterization and quantification of influenza neuraminidase antigens in vaccines.The Journal of biological chemistry · 2026Article
- Chronology of H3N2 human influenza virus surface glycoprotein adaptation from 1968 to 2019 reveals a surge of adaptation between 1997 and 2002.Journal of virology · 2025Article
- Article
- Electrochemical biosensors based on the 3D immobilization of capture probes for influenza virus detection.RSC advances · 2025Review
- Mapping the Global Antigenic Evolution of Human Influenza A/H3N2 Neuraminidase Based on a Machine Learning Model - 1968-2024.China CDC weekly · 2025Article
- Influenza neuraminidase active site proximity assay for rapid profiling of inhibitory antibodies and antigenic drift.NPJ vaccines · 2025Article
- Capsid virus-like particle display improves recombinant influenza neuraminidase antigen stability and immunogenicity in mice.iScience · 2024Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although viral-based influenza vaccines contain neuraminidase (NA or N) antigens from the recommended seasonal strains, NA is not extensively evaluated like hemagglutinin (H) during the strain selection process. Here, we compared the antigenicity of NAs from recently recommended H1N1 (2010-2021 seasons) and H3N2 (2015-2021 seasons) vaccine strains and viruses that circulated between September 2019 and December 2020. The antigenicity was evaluated by measuring NA ferret antisera titers that provide 50% inhibition of NA activity in an enzyme-linked lectin assay. Our results show that NAs from circulating H1N1 viruses and vaccine strains for the 2017-2021 seasons are all antigenically similar and distinct from the NA in the H1N1 strain recommended for the 2010-2017 seasons. Changes in N1 antigenicity were attributed to the accumulation of substitutions over time, especially the loss of an N-linked glycosylation site (Asn386) in current N1s. The NAs from circulating H3N2 viruses and the 2020-2021 vaccine strains showed similar antigenicity that varied across the N2s in the 2016-2020 vaccine strains and was distinct from the N2 in the 2015-2016 vaccine strain. These data suggest that the recent N1 antigenicity has remained similar since the loss of the head domain N-linked glycosylation site, whereas N2 antigenicity has changed more incrementally each season.
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.