Evidence map›Paper›PMID 30869057›Full record

ArticleEpidemiology and infection2019

An apple a day: an outbreak of cryptosporidiosis in Norway associated with self-pressed apple juice.

L J Robertson, T T Temesgen, K R Tysnes, J E Eikås

Open access · hybridAbstract read
In one paragraph

Article in Epidemiology and infection, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

19 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
  2. Review
  3. ConcurrentEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
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  4. Permeabilization ofFoods (Basel, Switzerland) · 2025
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  5. First nationwide investigation ofCurrent research in parasitology & vector-borne diseases · 2025
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  6. A review of recentCurrent research in parasitology & vector-borne diseases · 2025
    Review
  7. Emerging microbes & infections · 2024
    Article
  8. Review
  9. Review
  10. Review
  11. Transition to PCR diagnosis of cryptosporidiosis and giardiasis in the Norwegian healthcare system: could the increase in reported cases be due to higher sensitivity or a change in the testing algorithm?European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2022
    Article
  12. Article
  13. Review
  14. Review
  15. Diverse Genotypes and Species ofMicroorganisms · 2021
    Article
  16. Article
  17. Article
  18. Article
  19. Review
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.

L J RobertsonParasitology Lab., Department of Food Safety and Infection Biology, Faculty of Veterinary Medicine,Norwegian University of Life Sciences,PO Box 369 sentrum, 0102 Oslo,Norway.ORCID 0000-0001-5186-4421
T T TemesgenParasitology Lab., Department of Food Safety and Infection Biology, Faculty of Veterinary Medicine,Norwegian University of Life Sciences,PO Box 369 sentrum, 0102 Oslo,Norway.
K R TysnesParasitology Lab., Department of Food Safety and Infection Biology, Faculty of Veterinary Medicine,Norwegian University of Life Sciences,PO Box 369 sentrum, 0102 Oslo,Norway.
J E EikåsSmittevernlege, Postboks 184, Fjell kommune, 5342 Straume,Norway.
Norwegian University of Life Sciences · NOOslo Kommune · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the autumn of 2018, an outbreak of cryptosporidiosis affected adult employees from the same company in Western Norway. The organism was Cryptosporidium parvum, GP60 subtype IIaA14G1R1. All those infected had drunk from the same container of self-pressed apple juice. Incubation period (1 week) and clinical signs were similar among those infected, although some experienced a more prolonged duration of symptoms (up to 2-3 weeks) than others. The infections resulted after consumption from only one of 40 containers of juice and not from any of the other containers. It seems that although Cryptosporidium oocysts were detected in a sample from another container, the contamination did not affect the whole batch. This is perhaps indicative of a restricted contamination event, either from contaminated ground in the orchard, or during collection of the fruit, or during processing. Although outbreaks of food-borne cryptosporidiosis have previously been associated with consumption of contaminated apple juice, most of the more recent outbreaks of food-borne cryptosporidiosis have been associated with salad vegetables or herbs. This outbreak, the first outside USA reported to be associated with apple juice, is a timely reminder that such juice is a suitable transmission vehicle for Cryptosporidium oocysts, and that appropriate hygienic measures are essential in the production of such juice, including artisanal (non-commercial) production.

Indexed as

Disease OutbreaksCryptosporidiosisCryptosporidium parvumFoodborne DiseasesFruit and Vegetable JuicesGenotypeHumansMalusNorwayCryptosporidiumfood-borne infectionsgastrointestinal infectionsoutbreaks

Identifiers

PMID30869057
PMCPMC6518447
OpenAlexW2922260919

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.