Evidence map›Paper›PMID 25172863›Full record

ArticleApplied and environmental microbiology2014

Detection of pathogenic viruses in sewage provided early warnings of hepatitis A virus and norovirus outbreaks.

Maria Hellmér, Nicklas Paxéus, Lars Magnius, Lucica Enache, Birgitta Arnholm, Annette Johansson, Tomas Bergström, Heléne Norder

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 225 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
225citing papers in PubMed, 3 pooled it
–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

225 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  10. Economic evaluation of wastewater surveillance in Ontario, Canada, using COVID-19 as a case study.Canada communicable disease report = Releve des maladies transmissibles au Canada · 2026
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  11. Review
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  19. Wastewater Metavirome Diversity: Exploring Replicate Inconsistencies and Bioinformatic Tool Disparities.International journal of environmental research and public health · 2025
    Article
  20. Article

165 more citing papers are in PubMed but not listed here.

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

8 authors.

Maria HellmérDepartment of Clinical Microbiology, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
Nicklas PaxéusGryaab AB, Gothenburg, Sweden.
Lars MagniusMTC, Karolinska Institutet, Stockholm, Sweden.
Lucica EnacheGryaab AB, Gothenburg, Sweden.
Birgitta ArnholmDepartment of Communicable Disease Control, Västra Götaland Region, Sweden.
Annette JohanssonGryaab AB, Gothenburg, Sweden.
Tomas BergströmDepartment of Clinical Microbiology, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden.
Heléne NorderDepartment of Clinical Microbiology, Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden MTC, Karolinska Institutet, Stockholm, Sweden helene.norder@gu.se.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Most persons infected with enterically transmitted viruses shed large amounts of virus in feces for days or weeks, both before and after onset of symptoms. Therefore, viruses causing gastroenteritis may be detected in wastewater, even if only a few persons are infected. In this study, the presence of eight pathogenic viruses (norovirus, astrovirus, rotavirus, adenovirus, Aichi virus, parechovirus, hepatitis A virus [HAV], and hepatitis E virus) was investigated in sewage to explore whether their identification could be used as an early warning of outbreaks. Samples of the untreated sewage were collected in proportion to flow at Ryaverket, Gothenburg, Sweden. Daily samples collected during every second week between January and May 2013 were pooled and analyzed for detection of viruses by concentration through adsorption to milk proteins and PCR. The largest amount of noroviruses was detected in sewage 2 to 3 weeks before most patients were diagnosed with this infection in Gothenburg. The other viruses were detected at lower levels. HAV was detected between weeks 5 and 13, and partial sequencing of the structural VP1protein identified three different strains. Two strains were involved in an ongoing outbreak in Scandinavia and were also identified in samples from patients with acute hepatitis A in Gothenburg during spring of 2013. The third strain was unique and was not detected in any patient sample. The method used may thus be a tool to detect incipient outbreaks of these viruses and provide early warning before the causative pathogens have been recognized in health care.

Indexed as

Disease OutbreaksEpidemiological MonitoringCaliciviridae InfectionsHepatitis AHumansMolecular Sequence DataSequence Analysis, DNASewageSwedenTime FactorsVirusesSewage

Identifiers

PMID25172863
PMCPMC4249052

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.