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Veterinary medicine and science2019; 5(3); 361-371; doi: 10.1002/vms3.176

Detection of equid herpesviruses among different Arabian horse populations in Egypt.

Abstract: Equid herpesviruses (EHVs) threaten equine health and can cause significant economic losses to the equine industry worldwide. Different equid herpesviruses, EHV-1, EHV-2, EHV-4 and EHV5 are regularly detected among horse populations. In Egypt, monitoring is sporadic but EHV-1 or EHV-4 have been reported to circulate in the horse population. However, there is a lack of reports related to infection and health status of horses, likely due to the absence of regular diagnostic procedures. In the current study, the circulation of four infectious equid herpesviruses (EHV-1, EHV-2, EHV-4 and EHV-5) among different Arabian horse populations and donkeys residing the same farm was monitored. Different samples were collected and DNA was extracted and subjected to quantitative (q)-PCR to detect the four equid herpesviruses using specific primers and probes. Antibody titres against EHV-1 and EHV-4 were tested using virus neutralization test and type-specific ELISA. The results showed that EHV-1, EHV-2, EHV-4 and EHV-5 are endemic and can be a continuous threat for horses in the absence of vaccination programs and frequent virus reactivation. There is an urgent need for introduction of active regular surveillance measures to investigate the presence of different equid herpesviruses, and other equine viral pathogens, in various horse populations around Egypt and to establish a standardized cataloguing of equine health status.
Publication Date: 2019-05-31 PubMed ID: 31149784PubMed Central: PMC7155215DOI: 10.1002/vms3.176Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

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The research article explores the presence of equid herpesviruses (EHVs) among various Arabian horse populations and donkeys in Egypt, highlighting the continuous threat of these viruses, especially in the absence of regular vaccination programs and diagnostic procedures.

Overview of the Research

  • This study primarily explores the circulation of four strains of equid herpesviruses (EHV-1, EHV-2, EHV-4, and EHV-5) in different Arabian horse populations and donkeys in Egypt. These viruses pose significant threats to equine health and can lead to considerable economic losses in the equine industry globally.
  • The research realized that while there have been reports of circulation of EHV-1 or EHV-4 in Egypt’s horse populations, there is a significant lack of comprehensive reports regarding the overall infection and health status of horses in the region. This insufficiency is attributed to the absent standard diagnostic procedures.

Research Methodology

  • The researchers collected different samples and extracted DNA, which was then subjected to a quantitative PCR test. This approach was taken to detect the presence of the four identified EHV strains using specific primers and probes.
  • Further, the team also tested for antibody titres against EHV-1 and EHV-4 using a virus neutralization test and type-specific ELISA.

Findings of the Study

  • The results indicated that EHV-1, EHV-2, EHV-4, and EHV-5 are endemic in the region and continue to pose a substantial threat to horses, primarily because of the absence of regular vaccination programs and frequent virus reactivation.
  • Therefore, the study underscores the urgent need for introducing regular surveillance measures. These measures should actively investigate the presence of different EHVs and other equine viral pathogens among various horse populations across Egypt.
  • Additionally, the research calls for the development of a standardized cataloguing system for equine health status to bridge the existing reporting deficiencies.

Cite This Article

APA
Azab W, Bedair S, Abdelgawad A, Eschke K, Farag GK, Abdel-Raheim A, Greenwood AD, Osterrieder N, Ali AAH. (2019). Detection of equid herpesviruses among different Arabian horse populations in Egypt. Vet Med Sci, 5(3), 361-371. https://doi.org/10.1002/vms3.176

Publication

ISSN: 2053-1095
NlmUniqueID: 101678837
Country: England
Language: English
Volume: 5
Issue: 3
Pages: 361-371

Researcher Affiliations

Azab, Walid
  • Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Berlin, Germany.
Bedair, Sameh
  • Department of Virology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Abdelgawad, Azza
  • Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Eschke, Kathrin
  • Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Berlin, Germany.
Farag, Gemelat K
  • Department of Virology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Abdel-Raheim, Ali
  • Department of Gynecology and Artificial Insemination, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
Greenwood, Alex D
  • Department of Wildlife Diseases, Leibniz-Institute for Zoo and Wildlife Research, Berlin, Germany.
Osterrieder, Nikolaus
  • Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Freie Universität Berlin, Berlin, Germany.
Ali, Ahmed A H
  • Department of Virology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.

MeSH Terms

  • Animals
  • Egypt / epidemiology
  • Equidae
  • Female
  • Herpesviridae / isolation & purification
  • Herpesviridae Infections / epidemiology
  • Herpesviridae Infections / veterinary
  • Herpesviridae Infections / virology
  • Horse Diseases / epidemiology
  • Horse Diseases / virology
  • Horses
  • Incidence
  • Male
  • Prevalence

Conflict of Interest Statement

The authors declare that they have no conflict of interest.

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Citations

This article has been cited 15 times.