Evidence map›Paper›PMID 23918547›Full record

ArticleJournal of medical virology2013

Detection and molecular characterisation of noroviruses in hospitalised children in Malawi, 1997-2007.

Eamonn Trainor, Ben Lopman, Miren Iturriza-Gomara, Winifred Dove, Bagrey Ngwira, Osamu Nakagomi, Toyoko Nakagomi, Umesh Parashar, Nigel Cunliffe

Open access · greenAbstract read
In one paragraph

Article in Journal of medical virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 3 pooled it
3.8field-weighted citation impact, top 6% 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

24 citing papers in PubMed, 3 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
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  11. Pediatric norovirus GII.4 infections in Nicaragua, 1999-2015.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2017
    Article
  12. Article
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  14. Norovirus prevalence and estimated viral load in symptomatic and asymptomatic children from rural communities of Vhembe district, South Africa.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2016
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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

9 authors at 4 institutions in 4 countries.

Eamonn TrainorDepartment of Clinical Infection, Microbiology & Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, United Kingdom.
Ben Lopman
Miren Iturriza-Gomara
Winifred Dove
Bagrey Ngwira
Osamu Nakagomi
Toyoko Nakagomi
Umesh Parashar
Nigel Cunliffe
University of Liverpool · GBCenters for Disease Control and Prevention · USNagasaki University · JPUniversity of Malawi · MW

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

Despite the increasing recognition of noroviruses as major pathogens associated with community-acquired diarrhoea in children, there are few studies from Africa. Long-term surveillance studies of rotavirus gastroenteritis in Malawian children have provided an opportunity to undertake a study of the importance and epidemiological features of norovirus infection in this population. Faecal specimens were collected from children <5 years of age admitted to hospital with acute diarrhoea, as well as from a comparison group of diarrhoea-free children, in Blantyre, Malawi between 1997 and 2007. Norovirus was detected using real-time PCR and strains genotyped by nucleotide sequence analysis. Norovirus was detected in 220/1,941 (11.3%) faecal specimens, comprising genogroup GI (1.8%), GII (9.4%) and mixed GI/GII (0.1%). The median age of children with norovirus was 6 months (range, 0-48 months). Norovirus was detected throughout the year, with peaks at the end of the rainy season (March) and towards the end of the dry season (August-November). Norovirus GII.4 was the most commonly detected genotype accounting for 70% of strains characterised, followed by GII.2 (6%), GII.6 (4%) and GII.12 (4%). Sub typing of GII.4 noroviruses demonstrated local circulation of strains prior to their subsequent detection in association with global epidemics of gastroenteritis. The prevalence of norovirus in children without diarrhoea was similar to the level in cases. This largest study to date of norovirus infection in African children indicates the potential role of paediatric surveillance in predicting the emergence of norovirus strains with global epidemic potential.

Indexed as

Caliciviridae InfectionsChild, PreschoolFecesFemaleGastroenteritisGenotypeHumansInfantInfant, NewbornMalawiMaleMolecular EpidemiologyNorovirusPrevalenceReal-Time Polymerase Chain ReactionSeasonsgastroenteritisMalawinorovirus

Identifiers

PMID23918547
PMCPMC8168456
OpenAlexW1956902656

What OpenQuestion holds

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Registered trials

None linked

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.