Evidence map›Paper›PMID 34311941›Full record

ArticleVeterinary parasitology2019

Retrospective analysis of vector-borne infections in dogs after travelling to endemic areas (2007-2018).

Ingo Schäfer, Maria Volkmann, Pamela Beelitz, Roswitha Merle, Elisabeth Müller, Barbara Kohn

Abstract read
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In one paragraph

Article in Veterinary parasitology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. One health (Amsterdam, Netherlands) · 2026
    Article
  2. Circulation ofLife (Basel, Switzerland) · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
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  12. Pathogens (Basel, Switzerland) · 2021
    Review
  13. Simultaneous Exposure toPathogens (Basel, Switzerland) · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Journal of feline medicine and surgery · 2020
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Ingo SchäferClinic for Small Animals, Faculty of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19 b, 14163, Berlin, Germany. Electronic address: ingo.schaefer@fu-berlin.de.
Maria VolkmannInstitute of Veterinary Epidemiology and Biostatistics, Freie Universität Berlin, Oertzenweg 19 b, 14163, Berlin, Germany. Electronic address: maria.volkmann@fu-berlin.de.
Pamela BeelitzChair for Experimental Parasitology, Faculty of Veterinary Medicine, Ludwig-Maximilians-Universität Munich, Leopoldstraße 5, 80802, Munich, Germany. Electronic address: Pamela.Beelitz@para.vetmed.uni-muenchen.de.
Roswitha MerleInstitute of Veterinary Epidemiology and Biostatistics, Freie Universität Berlin, Oertzenweg 19 b, 14163, Berlin, Germany. Electronic address: roswitha.merle@fu-berlin.de.
Elisabeth MüllerLaboklin GmbH & Co.KG, Steubenstraße 4, 97688, Bad Kissingen, Germany. Electronic address: mueller@laboklin.com.
Barbara KohnClinic for Small Animals, Faculty of Veterinary Medicine, Freie Universität Berlin, Oertzenweg 19 b, 14163, Berlin, Germany. Electronic address: barbara.kohn@fu-berlin.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Canine vector-borne infections gained in importance in Germany due to growing tourist traffic, the increased import of dogs from abroad and the changing of climatic conditions. The Mediterranean region and southeastern Europe are geographical areas where pathogens such as Leishmania (L.) infantum, Hepatozoon (H.) canis, Ehrlichia (E.) canis, Anaplasma (A.) platys and Dirofilaria (D.) spp. are endemic. Meanwhile, Babesia (B.) spp. and A. phagocytophilum are present in central and western Europe. The objective of this retrospective study was to evaluate whether dogs were exposed to a corresponding risk of infection when travelling to regions in the Mediterranean area and southeastern Europe, which are endemic for these pathogens. Medical records and laboratory test results of 303 dogs that travelled to 14 countries endemic for the mentioned canine vector-borne pathogens and that were presented to the Small Animal Clinic at Freie Universität Berlin between 2007 and 2018 were retrospectively reviewed. A total of 1174 test results from external laboratories were descriptively analysed including 525 test results of direct and 649 of indirect determination methods. Overall, 13% of the tested dogs (40/303) were positive for at least one pathogen. Concurrent infections with two pathogens were detected in 1% of the dogs (4/303). The positive results were: E. canis 8% (18/231 dogs; Polymerase chain reaction [PCR] 3/73, indirect immunofluorescence test [IFAT] 18/209 dogs), L. infantum 5% (14/260 dogs; PCR 5/80, IFAT or enzyme linked immunosorbent assay [ELISA] 11/251 dogs), Babesia spp. 5% (11/232 dogs; Babesia spp. PCR 3/127, B. canis/vogeli IFAT or ELISA 8/160, B. gibsoni IFAT 2/22), Dirofilaria spp. 1% (1/133 dogs; D. immitis antigen-ELISA 1/117, microfilariae PCR 0/16, Knott´s test 0/69 dogs). None of the dogs has been tested positive in a combined Babesia spp./Hepatozoon spp. PCR test (0/15 dogs) and for H. canis (0/17 dogs; PCR) or A. platys (0/11 dogs; PCR). There is a substantial risk for dogs travelling to areas endemic for vector-borne pathogens even with limited time of exposure to get infected. The data indicates the importance of owner education and prophylactic measurements against vector-borne infections in dogs travelling to endemic areas.

Indexed as

Arthropod-transmitted infectionsGermanyLaboratory diagnosticsVector-borne diseases

Identifiers

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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.