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Vector borne and zoonotic diseases (Larchmont, N.Y.)2020; 20(10); 797-799; doi: 10.1089/vbz.2019.2592

Seroprevalence of Crimean-Congo Hemorrhagic Fever in Domesticated Animals in Northwestern Senegal.

Abstract: Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease that can be contracted by direct contact with viremic animals or humans. In West Africa, recurrent CCHF outbreaks have been constantly observed in Mauritania and Senegal. Moreover, acquisition and epidemiology of the infection in humans are correlated with the occurrence and the seroprevalence of the virus in livestock. The main objective of this study is to provide updated information on the local spread of CCHF in animals in the northern region of Senegal. Out of a total of 283 animal sera collected, CCHF-specific antibodies were identified in 92 (32.5%; confidence interval [CI] 27.1-38.3) sera by double antigen sandwich enzyme-linked immunosorbent assay (ELISA) test. The prevalence of CCHF virus (CCHFV) infection among horses, cattle, sheep, dogs, donkeys, and goats was 70.3% (45/64), 57.1% (8/14), 22.1% (30/136), 18.2% (2/11), 17.2% (5/29), and 6.9% (2/29), respectively. The antibody titers were found significantly affected by age ( < 0.0001) and gender ( < 0.05). High tick infestation by spp. and spp. was recorded on horses. The high seroprevalence to CCHFV among animals in the northern region of Senegal observed in this study indicates the permanent presence of the infection in the northern region of the country suggesting the need to strengthen surveillance plans for CCHF in Senegal.
Publication Date: 2020-05-19 PubMed ID: 32429789DOI: 10.1089/vbz.2019.2592Google Scholar: Lookup
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

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This research focuses on investigating the prevalence of Crimean-Congo Hemorrhagic Fever (CCHF) in domesticated animals in Northwestern Senegal. The results found a high prevalence of the infection, indicating a potential risk for human transmission and highlighting the need for improved surveillance strategies.

Understanding the Study

  • The study was conducted to measure the prevalence of Crimean-Congo Hemorrhagic Fever, a tick-borne disease, in domesticated animals in Northwestern Senegal. The motivation behind this research stems from previous observations of recurrent CCHF outbreaks in Senegal and Mauritania and the established link between CCHF infections in livestock and humans.
  • The study team collected sera from a total of 283 animals and tested for CCHF-specific antibodies using a double antigen sandwich enzyme-linked immunosorbent assay (ELISA) test. The animals tested were of different kinds – horses, cattle, sheep, dogs, donkeys, and goats.

Key Findings

  • The results showed CCHF-specific antibodies present in 32.5% of the total animal sera tested, reflecting a significant amount of infection in the region’s livestock. However, the infection rate varied widely among different animal species.
  • Highest prevalence was found in the horses (70.3%) and cattle (57.1%). The disease prevalence was markedly lower in sheep (22.1%), dogs (18.2%), donkeys (17.2%), and goats (6.9%).
  • The study also found significant variations in the antibody titers based on the age and gender of the animals.
  • The researchers noticed high tick infestation on horses, which is a significant factor considering CCHF is a tick-borne disease.

Implications

  • These findings of high seroprevalence among animals in Northwestern Senegal indicates the consistent presence of the infection in the region.
  • Given the potential for human transmission from infected livestock, this poses a significant public health concern.
  • The results underscore the importance of implementing robust surveillance strategies and preventive measures to control the spread of CCHF in Senegal.

Cite This Article

APA
Mangombi JB, Roqueplo C, Sambou M, Dahmani M, Mediannikov O, Comtet L, Davoust B. (2020). Seroprevalence of Crimean-Congo Hemorrhagic Fever in Domesticated Animals in Northwestern Senegal. Vector Borne Zoonotic Dis, 20(10), 797-799. https://doi.org/10.1089/vbz.2019.2592

Publication

ISSN: 1557-7759
NlmUniqueID: 100965525
Country: United States
Language: English
Volume: 20
Issue: 10
Pages: 797-799

Researcher Affiliations

Mangombi, Joa Braïthe
  • Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Marseille, France.
  • IHU Méditerranée Infection, Marseille, France.
  • Centre International de Recherche Médicale de Franceville (CIRMF), Franceville, Gabon.
Roqueplo, Cédric
  • French Military Health Service, Expertise and Defense Health Strategy Division, Paris, France.
  • French Military Health Service, Animal Epidemiology Working Group, Marseille, France.
Sambou, Masse
  • IHU Méditerranée Infection, Marseille, France.
  • Vectors-Tropical and Mediterranean Infections (VITROME), Campus International UCAD-IRD, Dakar, Senegal.
  • Aix Marseille Univ, IRD, SSA, APHM, VITROME, IHU Méditerranée Infection, Marseille, France.
Dahmani, Mustapha
  • Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Marseille, France.
  • IHU Méditerranée Infection, Marseille, France.
Mediannikov, Oleg
  • Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Marseille, France.
  • IHU Méditerranée Infection, Marseille, France.
Comtet, Loïc
  • IDVet, Grabels, France.
Davoust, Bernard
  • Aix Marseille Univ, IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Marseille, France.
  • IHU Méditerranée Infection, Marseille, France.
  • French Military Health Service, Animal Epidemiology Working Group, Marseille, France.

MeSH Terms

  • Animals
  • Antibodies, Viral / blood
  • Dog Diseases / virology
  • Dogs
  • Female
  • Hemorrhagic Fever Virus, Crimean-Congo / isolation & purification
  • Hemorrhagic Fever, Crimean / blood
  • Hemorrhagic Fever, Crimean / epidemiology
  • Hemorrhagic Fever, Crimean / veterinary
  • Livestock / virology
  • Male
  • Prevalence
  • Senegal
  • Seroepidemiologic Studies
  • Tick Infestations / veterinary
  • Ticks

Citations

This article has been cited 27 times.
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