Evidence map›Paper›PMID 33514421›Full record

SynthesisParasites & vectors2021

The survival and dispersal of Taenia eggs in the environment: what are the implications for transmission? A systematic review.

Famke Jansen, Pierre Dorny, Sarah Gabriël, Veronique Dermauw, Maria Vang Johansen, Chiara Trevisan

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Parasites & vectors, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 2 pooled it
6.8field-weighted citation impact, top 2% 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

43 citing papers in PubMed, 2 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. IsPathogens (Basel, Switzerland) · 2025
    Review
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  10. Potential ofPharmaceuticals (Basel, Switzerland) · 2025
    Article
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  16. Review
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  19. Presence ofParasitology · 2024
    Review
  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

6 authors at 3 institutions in 2 countries.

Famke JansenDepartment of Biomedical Sciences, Institute of Tropical Medicine, 155 Nationalestraat, 2000, Antwerp, Belgium. fjansen@itg.be.ORCID http://orcid.org/0000-0001-6119-4716
Pierre DornyDepartment of Biomedical Sciences, Institute of Tropical Medicine, 155 Nationalestraat, 2000, Antwerp, Belgium.
Sarah GabriëlDepartment of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, 133 Salisburylaan, 9820, Merelbeke, Belgium.
Veronique DermauwDepartment of Biomedical Sciences, Institute of Tropical Medicine, 155 Nationalestraat, 2000, Antwerp, Belgium.
Maria Vang JohansenDepartment of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 100 Dyrlægevej, 1870, Frederiksberg, Denmark.
Chiara TrevisanDepartment of Biomedical Sciences, Institute of Tropical Medicine, 155 Nationalestraat, 2000, Antwerp, Belgium.
Instituut voor Tropische Geneeskunde · BEGhent University · BEUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Taenia spp. are responsible for a substantial health and economic burden in affected populations. Knowledge of the fate of the eggs of Taenia spp. in the environment and of other factors facilitating the transmission of eggs to intermediate hosts is important for the control/elimination of infections caused by Taenia spp. The aim of this systematic review was to summarize current knowledge of the factors influencing the survival and dispersal of Taenia spp. eggs in the environment. Publications retrieved from international databases were systematically reviewed. Of the 1465 papers initially identified, data were ultimately extracted from 93 papers. The results of this systematic review indicate that survival is favoured at moderate temperatures (0-20 °C). Humidity seems to affect the survival of Taenia spp. eggs more than temperature. Under field circumstances, Taenia spp. eggs have been found to survive for up to 1 year. Taenia spp. eggs are commonly found on vegetables (0.9-30%) and in soil and water samples (0-43%), with their presence posing a risk to the consumer. Invertebrates may act as transport hosts, transferring the infection to an intermediate host, but the importance of this route of transmission is still open to question. Wastewater treatment systems are not capable of entirely eliminating Taenia spp. eggs. Access to surface water and the use of sewage sludge as fertilizer on pastures are important risk factors for bovine cysticercosis. Although information on the survival and spread of Taenia spp. eggs is available, in general the data retrieved and reviewed in this article were old, focused on very specific geographical regions and may not be relevant for other areas or not specific for different Taenia spp. Furthermore, it is unknown whether egg survival differs according to Taenia sp. Future studies are necessary to identify sustainable methods to identify and inactivate parasite eggs in the environment and reduce their spread.

Indexed as

TaeniaAnimal DistributionAnimalsCattleCommunicable Disease ControlCysticercosisHumansHumidityInvertebratesLife Cycle StagesLongevityParasite Egg CountSewageSoilTaeniasisTemperatureSewageSoilEgg survivalEnvironmentSewage treatmentSpreadTaenia

Identifiers

PMID33514421
PMCPMC7845101
OpenAlexW3122785728

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.