Evidence map›Paper›PMID 26968797›Full record

ArticleBMC infectious diseases2016

Characterisation of a household norovirus outbreak occurred in Valencia (Spain).

Noelia Carmona-Vicente, Manuel Fernández-Jiménez, Susana Vila-Vicent, Jesús Rodríguez-Díaz, Javier Buesa

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Noelia Carmona-VicenteDepartment of Microbiology, School of Medicine, University of Valencia, Avda. Blasco Ibáñez 17, 46010, Valencia, Spain.
Manuel Fernández-JiménezDepartment of Microbiology, School of Medicine, University of Valencia, Avda. Blasco Ibáñez 17, 46010, Valencia, Spain.
Susana Vila-VicentDepartment of Microbiology, School of Medicine, University of Valencia, Avda. Blasco Ibáñez 17, 46010, Valencia, Spain.
Jesús Rodríguez-DíazDepartment of Microbiology, School of Medicine, University of Valencia, Avda. Blasco Ibáñez 17, 46010, Valencia, Spain. jesus.rodriguez@uv.es.
Javier BuesaDepartment of Microbiology, School of Medicine, University of Valencia, Avda. Blasco Ibáñez 17, 46010, Valencia, Spain. javier.buesa@uv.es.
Universitat de València · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman noroviruses (NoVs) are the main cause of non-bacterial gastroenteritis worldwide. Several studies have linked human susceptibility to NoVs with the expression of histo-blood group antigens (HBGAs). In January 2012, a NoV gastroenteritis outbreak affected a household in Valencia, Spain, and the personal susceptibility to NoV was investigated.

methodsTo reach this aim 8 members of the affected household were recruited for this study and their secretor status, ABO and Lewis antigens were determined. NoV-specific saliva IgA and serum IgG antibody titers were analyzed. Their capacity to block viral binding to saliva receptors was analyzed, using virus-like particles (VLPs) of the NoV GII.4 genotype, 2006b variant, and saliva from a secretor O blood type donor.

resultsThe most relevant finding was that an asymptomatic non-secretor individual shed NoVs in his stools. Interestingly, anti-NoV IgA antibody titers in saliva from secretor and non-secretor individuals showed no differences. On the contrary, high titers of NoV-specific IgG antibody were found in both convalescent sera and in sera collected 1 year post-infection, but only from secretor individuals. NoV GII.4-2006b VLP binding to receptors present in the saliva was efficiently blocked only by sera from secretor positive individuals.

conclusionsDespite the small number of individuals involved in this outbreak, this study reinforces the idea that susceptibility to human NoV is both dependent on the HBGA profile of the individuals as well as on the viral genotype and variant. We also show that the immunity to NoV lasts for at least 1 year after infection, demonstrating that symptomatic infections strongly stimulate immune responses.

Indexed as

Disease OutbreaksAdultCaliciviridae InfectionsChildFamily CharacteristicsFecesFemaleGastroenteritisGenotypeHumansMaleMiddle AgedNorovirusSalivaSpainBinding assayFUT2Histo-blood group antigensIgAIgGNorovirusSecretorSusceptibilityVirus-like particles

Identifiers

PMID26968797
PMCPMC4788899
OpenAlexW2296608825

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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.