Evidence map›Paper›PMID 23468949›Full record

ArticlePloS one2013

The spread of influenza A(H1N1)pdm09 in Victorian school children in 2009: implications for revised pandemic planning.

James E Fielding, Isabel Bergeri, Nasra Higgins, Heath A Kelly, Julian Meagher, Emma S McBryde, Rodney Moran, Margaret E Hellard, Rosemary A Lester

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. COVID-19-What Price Do Children Pay? An Analysis of Economic and Social Policy Factors.International journal of environmental research and public health · 2022
    Review
  2. Article
  3. Estimating the United States demand for influenza antivirals and the effect on severe influenza disease during a potential pandemic.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2015
    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

9 authors.

James E FieldingVictorian Infectious Diseases Reference Laboratory, Melbourne, Victoria, Australia. james.fielding@mh.org.au
Isabel Bergeri
Nasra Higgins
Heath A Kelly
Julian Meagher
Emma S McBryde
Rodney Moran
Margaret E Hellard
Rosemary A Lester

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVictoria was the first state in Australia to experience community transmission of influenza A(H1N1)pdm09. We undertook a descriptive epidemiological analysis of the first 1,000 notified cases to describe the epidemic associated with school children and explore implications for school closure and antiviral distribution policy in revised pandemic plans.

methodsRecords of the first 1,000 laboratory-confirmed cases of influenza A(H1N1)pdm09 notified to the Victorian Government Department of Health between 20 May and 5 June 2009 were extracted from the state's notifiable infectious diseases database. Descriptive analyses were conducted on case demographics, symptoms, case treatment, prophylaxis of contacts and distribution of cases in schools.

resultsTwo-thirds of the first 1,000 cases were school-aged (5-17 years) with cases in 203 schools, particularly along the north and western peripheries of the metropolitan area. Cases in one school accounted for nearly 8% of all cases but the school was not closed until nine days after symptom onset of the first identified case. Amongst all cases, cough (85%) was the most commonly reported symptom followed by fever (68%) although this was significantly higher in primary school children (76%). The risk of hospitalisation was 2%. The median time between illness onset and notification of laboratory confirmation was four days, with only 10% of cases notified within two days of onset and thus eligible for oseltamivir treatment. Nearly 6,000 contacts were followed up for prophylaxis.

conclusionsWith a generally mild clinical course and widespread transmission before its detection, limited and short-term school closures appeared to have minimal impact on influenza A(H1N1)pdm09 transmission. Antiviral treatment could rarely be delivered to cases within 48 hours of symptom onset. These scenarios and lessons learned from them need to be incorporated into revisions of pandemic plans.

Indexed as

Disaster PlanningDisease OutbreaksSchoolsAdolescentChildHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanVictoria

Identifiers

PMID23468949
PMCPMC3582498

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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.