Evidence map›Paper›PMID 25062389›Full record

ArticleEuropean journal of protistology2014

Free-living amoebae (FLA) co-occurring with legionellae in industrial waters.

Ute Scheikl, Regina Sommer, Alexander Kirschner, Alexandra Rameder, Barbara Schrammel, Irene Zweimüller, Wolfgang Wesner, Manfred Hinker, Julia Walochnik

Abstract read
In one paragraph

Article in European journal of protistology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing 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

29 citing papers in PubMed.

  1. Article
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  7. Article
  8. Cooccurrence of Five PathogenicPathogens (Basel, Switzerland) · 2021
    Article
  9. Review
  10. Article
  11. A New Active Substance Derived from LyzedPlants (Basel, Switzerland) · 2020
    Article
  12. Article
  13. Article
  14. Intracellular Behaviour of ThreePathogens (Basel, Switzerland) · 2020
    Article
  15. Co-Occurrence of Free-Living Amoeba andMedicina (Kaunas, Lithuania) · 2019
    Article
  16. Article
  17. Article
  18. Review
  19. 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

9 authors.

Ute ScheiklMolecular Parasitology, Institute of Specific Prophylaxis and Tropical Medicine, and Water Hygiene, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Kinderspitalgasse 15, A-1090 Vienna, Austria.
Regina SommerMolecular Parasitology, Institute of Specific Prophylaxis and Tropical Medicine, and Water Hygiene, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Kinderspitalgasse 15, A-1090 Vienna, Austria.
Alexander KirschnerMolecular Parasitology, Institute of Specific Prophylaxis and Tropical Medicine, and Water Hygiene, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Kinderspitalgasse 15, A-1090 Vienna, Austria.
Alexandra RamederMolecular Parasitology, Institute of Specific Prophylaxis and Tropical Medicine, and Water Hygiene, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Kinderspitalgasse 15, A-1090 Vienna, Austria.
Barbara SchrammelCest - Center for Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria.
Irene ZweimüllerCest - Center for Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria.
Wolfgang WesnerCest - Center for Electrochemical Surface Technology, A-2700 Wiener Neustadt, Austria.
Manfred HinkerAUVA - Austrian Workers' Compensation Board, A-1200 Vienna, Austria.
Julia WalochnikMolecular Parasitology, Institute of Specific Prophylaxis and Tropical Medicine, and Water Hygiene, Institute for Hygiene and Applied Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Kinderspitalgasse 15, A-1090 Vienna, Austria. Electronic address: julia.walochnik@meduniwien.ac.at.

Funding

Austrian Science Fund FWF TRP 209
6 · The paper itself

Abstract

Legionella pneumophila is known as the causative agent of Legionnaires' disease and free-living amoebae (FLA) can serve as vehicles for legionellae. The aim of this study was to screen industrial waters for the occurrence of FLA and their co-occurrence with legionellae. A total of 201 water samples, including 129 cooling waters and 72 process waters, and 30 cooling lubricants were included in the study. Treated waters were screened periodically, pre and post treatment. Altogether, 72.6% of the water samples were positive for FLA, acanthamoebae being most prevalent (in 23.9% of the samples) followed by Vermamoeba vermiformis (19.4%). Only one cooling lubricant was positive (Acanthamoeba genotype T4). Legionella spp. were detected in 34.8% of the water samples and in 15% in high concentrations (>1000 CFU/100 ml). Altogether, 81.4% of the Legionella-positive samples were positive for FLA by standard methods. By applying a highly sensitive nested PCR to a representative set of random samples it was revealed that Legionella spp. always co-occurred with Acanthamoeba spp. Although the addition of disinfectants did influence amoebal density and diversity, treated waters showed no difference concerning FLA in the interphases of disinfection. It appears that FLA can re-colonize treated waters within a short period of time.

Indexed as

Water MicrobiologyAmoebaAustriaBacterial LoadFresh WaterLegionella pneumophilaRNA, Ribosomal, 18SRNA, Ribosomal, 18SAcanthamoebaFree-living amoebaeIndustrial waterLegionellaPCR

Identifiers

PMID25062389
PMCPMC4155075

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.