Evidence map›Paper›PMID 29049310›Full record

ArticlePloS one2017

Molecular epidemiology of influenza B virus among hospitalized pediatric patients in Northern Italy during the 2015-16 season.

Antonio Piralla, Giovanna Lunghi, Luca Ruggiero, Alessia Girello, Sonia Bianchini, Francesca Rovida, Silvia Caimmi, Gian Luigi Marseglia, Nicola Principi, Fausto Baldanti and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.4field-weighted citation impact, top 18% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
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  4. Review
  5. Article
  6. Review
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  8. Article
  9. Influenza B viruses in pigs, Taiwan.Influenza and other respiratory viruses · 2019
    Article
  10. [The universal influenza vaccination in children with Vaxigrip TetraJournal of preventive medicine and hygiene · 2018
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Antonio PirallaMolecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Giovanna LunghiU.O.S Virology, IRCCS Fondazione Ca' Granda Ospedale Maggiore Policlinico di Milano, Milano, Italy.
Luca RuggieroPediatric Highly Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and University of Milan, Milano, Italy.
Alessia GirelloMolecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Sonia BianchiniPediatric Highly Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and University of Milan, Milano, Italy.
Francesca RovidaMolecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Silvia CaimmiPediatric Clinic, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Gian Luigi MarsegliaPediatric Clinic, University of Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Nicola PrincipiPediatric Highly Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and University of Milan, Milano, Italy.
Fausto BaldantiMolecular Virology Unit, Microbiology and Virology Department, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
Susanna EspositoPediatric Highly Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico and University of Milan, Milano, Italy.ORCID http://orcid.org/0000-0003-4103-2837
University of Milan · ITPoliclinico San Matteo Fondazione · ITUniversity of Pavia · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe influenza B viruses belong to two lineages distinguished by their genetic and antigenic characteristics, which are referred to as the Yamagata and Victoria lineages, designated after their original isolates, B/Yamagata/16/88 and B/Victoria/2/87. The primary aim of this study was to evaluate the molecular characteristics of influenza B viruses circulating in a region of Northern Italy, Lombardia, during the influenza season of 2015-2016.

methodsInfluenza B virus was detected using a respiratory virus panel of assays and an influenza B-specific real-time polymerase chain reaction. The complete influenza B hemagglutinin (HA) gene was amplified and sequenced directly from clinical specimens. Phylogenetic analysis was performed using nucleotide sequences.

resultsA total of 71 hospitalized pediatric patients were influenza B positive. Phylogenetic analysis showed that the great majority of influenza B strains (66/71, 93.0%) belonged to the Victoria-lineage and were antigenically like vaccine strain (B/Brisbane/60/2008) included only in the quadrivalent vaccine. In the detected influenza B strains, a series of amino acid changes were observed in the antigenic regions: I117V, V124A, N129D, V146I, N197D, T199A, and A202T. However, only 2 amino acid changes were observed in the HA regions involved in receptor binding or in antibody recognition.

conclusionsAll the influenza B strains identified in this study belonged to the influenza B Victoria lineage not included in the trivalent vaccine commonly used by the general population during the 2015-2016 influenza season in Italy. This indicates that protection against influenza B infection in the vaccinated population was in general very poor during the 2015-2016 influenza season.

Indexed as

Amino Acid SequenceChildDisease OutbreaksHumansInfluenza B virusInfluenza, HumanItalyPhylogenySequence Homology, Amino AcidViral ProteinsViral Proteins

Identifiers

PMID29049310
PMCPMC5648122
OpenAlexW2765352469

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.