Evidence map›Paper›PMID 22040359›Full record

ArticleVirology journal2011

Thermal stability of hepatitis E virus assessed by a molecular biological approach.

Anika Schielke, Matthias Filter, Bernd Appel, Reimar Johne

Open access · goldAbstract read
In one paragraph

Article in Virology journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

39 citing papers in PubMed, 93 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Quantitative Risk Evaluation of Adventitious Agents in Heparin.TH open : companion journal to thrombosis and haemostasis · 2023
    Review
  11. Article
  12. Risk assessment of hepatitis E transmission through tissue allografts.World journal of gastrointestinal pathophysiology · 2022
    Review
  13. Review
  14. Article
  15. Article
  16. Hepatitis E: Genotypes, strategies to prevent and manage, and the existing knowledge gaps.JGH open : an open access journal of gastroenterology and hepatology · 2021
    Review
  17. The Foodborne Transmission of Hepatitis E Virus to Humans.Food and environmental virology · 2021
    Review
  18. Article
  19. Technical and Anatomical Considerations for Reproducible Inactivation of Large Animal Carcasses by Steam Sterilization.Applied biosafety : journal of the American Biological Safety Association · 2021
    Article
  20. 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

4 authors at 2 institutions in 1 country.

Anika SchielkeFederal Institute for Risk Assessment, Berlin, Germany.
Matthias Filter
Bernd Appel
Reimar Johne
Federal Institute for Risk Assessment · DEFreie Universität Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis E virus (HEV) is a pathogen of emerging concern in industrialized countries. The consumption of wild boar meat has been identified as one risk factor for autochthonous HEV infections. Only limited information is available about thermal stability of HEV, mainly due to the lack of rapid and efficient cell culture systems for measurement of HEV infectivity.

methodsA molecular biological method was implemented in order to distinguish disassembled from intact viral particles using RNase treatment followed by quantitative real-time RT-PCR. The method was applied to a wild boar liver suspension containing HEV genotype 3.

resultsTime-course analyses indicated that the decline of protected RNA could be described by a biphasic model with an initial decrease followed by a stationary phase. The stationary phase was reached after 1 hour at 4°C, 3 days at 22°C and 7 days at 37°C with log reductions of 0.34, 0.45 and 1.24, respectively. Protected RNA was detectable until the end of the experiments at day 50 or 70. Heat exposure for 1 minute resulted in a log reduction of 0.48 at 70°C and increased with higher temperatures to 3.67 at 95°C. Although HEV infectivity titration by inoculation of the liver suspension onto three cell lines did not succeed, the results of the RNase-based method are in accordance with published cell culture-based data.

conclusionsMeasurement of intact viral particles using the RNase-based method may provide data on the stability of RNA viruses when cell culture-based infectivity titrations are not efficient or not available. The method enables processing of large sample numbers and may be suitable to estimate stability of HEV in different types of food.

Indexed as

AnimalsHepatitis E virusHumansLiverMicrobial ViabilitySus scrofa

Identifiers

PMID22040359
PMCPMC3215939
OpenAlexW2125898792

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.