Evidence map›Paper›PMID 37243194›Full record

ArticleViruses2023

Horses as Sentinels for the Circulation of Flaviviruses in Eastern-Central Germany.

Leonard M R Gothe, Stefanie Ganzenberg, Ute Ziegler, Anna Obiegala, Katharina L Lohmann, Michael Sieg, Thomas W Vahlenkamp, Martin H Groschup, Uwe Hörügel, Martin Pfeffer

Open access · goldAbstract read
In one paragraph

Article in Viruses, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
8.1field-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

26 citing papers in PubMed, 28 citations in OpenAlex.

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  13. A decade of West Nile virus surveillance in the host and vector populations of Denmark, 2011 to 2023.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025
    Article
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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

10 authors at 2 institutions in 1 country.

Leonard M R GotheInstitute of Animal Hygiene and Veterinary Public Health, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Stefanie GanzenbergDepartment for Horses, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Ute ZieglerFriedrich-Loeffler Institut (FLI), Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, 17493 Greifswald-Insel Riems, Germany.ORCID 0000-0001-5295-7339
Anna ObiegalaInstitute of Animal Hygiene and Veterinary Public Health, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Katharina L LohmannDepartment for Horses, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Michael SiegInstitute of Virology, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Thomas W VahlenkampInstitute of Virology, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.
Martin H GroschupFriedrich-Loeffler Institut (FLI), Federal Research Institute for Animal Health, Institute of Novel and Emerging Infectious Diseases, 17493 Greifswald-Insel Riems, Germany.ORCID 0000-0003-0215-185X
Uwe HörügelAnimal Diseases Fund Saxony, Horse Health Service, 01099 Dresden, Germany.
Martin PfefferInstitute of Animal Hygiene and Veterinary Public Health, Faculty of Veterinary Medicine, Leipzig University, 04103 Leipzig, Germany.ORCID 0000-0002-2457-8224
Leipzig University · DEFriedrich-Loeffler-Institut · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since 2018, autochthonous West Nile virus (WNV) infections have been regularly reported in eastern-central Germany. While clinically apparent infections in humans and horses are not frequent, seroprevalence studies in horses may allow the tracing of WNV and related flaviviruses transmission, such as tick-borne encephalitis virus (TBEV) and Usutu virus (USUV), and consequently help to estimate the risk of human infections. Hence, the aim of our study was to follow the seropositive ratio against these three viruses in horses in Saxony, Saxony Anhalt, and Brandenburg and to describe their geographic distribution for the year 2021. In early 2022, i.e., before the virus transmission season, sera from 1232 unvaccinated horses were tested using a competitive pan-flavivirus ELISA (cELISA). In order to estimate the true seropositive ratio of infection with WNV, TBEV, and USUV for 2021, positive and equivocal results were confirmed by a virus neutralization test (VNT). In addition, possible risk factors for seropositivity using questionnaires were analyzed using logistic regression based on questionnaires similar to our previous study from 2020. In total, 125 horse sera reacted positive in the cELISA. Based on the VNT, 40 sera showed neutralizing antibodies against WNV, 69 against TBEV, and 5 against USUV. Three sera showed antibodies against more than one virus, and eight were negative based on the VNT. The overall seropositive ratio was 3.3% (95% CI: 2.38-4.40) for WNV, 5.6% (95% CI: 4.44-7.04) for TBEV, and 0.4% (95% CI: 0.14-0.98) for USUV infections. While age and number of horses on the holding were factors predicting TBEV seropositivity, no risk factors were discovered for WNV seropositivity. We conclude that horses are useful sentinels to determine the flavivirus circulation in eastern-central Germany, as long as they are not vaccinated against WNV.

Indexed as

Encephalitis Viruses, Tick-BorneFlavivirusFlavivirus InfectionsHorse DiseasesWest Nile FeverWest Nile virusAnimalsAntibodies, ViralHorsesHumansSeroepidemiologic StudiesAntibodies, ViralflavivirusesGermanyhorsesrisk factorsseroprevalencetick-borne encephalitis virusUsutu virusvector-borne zoonosesvirus neutralization testWest Nile virus

Identifiers

PMID37243194
PMCPMC10222594
OpenAlexW4367625851

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.