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Seroprevalence and risk factors of bluetongue virus in domestic cattle, sheep, goats and camels in Africa: a systematic review and meta-analysis

Medrouh, Bachir, Abdelli, Amine, Belkessa, Salem, Ouinten, Yacine, Brahimi, Malika, Hakem, Ahcène, Kernif, Tahar, Singer, Steven M., Ziam, Hocine, Tsaousis, Anastasios D., and others. (2024) Seroprevalence and risk factors of bluetongue virus in domestic cattle, sheep, goats and camels in Africa: a systematic review and meta-analysis. Veterinary Quarterly, 44 (1). pp. 1-12. ISSN 1875-5941. (doi:10.1080/01652176.2024.2396118) (KAR id:107153)

Abstract

Bluetongue (BT) is a vector-borne disease affecting wild and domestic ruminants in many parts of the world. Although bluetongue virus (BTV) is widespread in ungulates in Africa, available epidemiological information on BT in this continent is limited. This systematic review and meta-analysis aimed to estimate the seroprevalence of BTV and summarize information on associated risk factors in domestic ruminants and camels in Africa. Systematic searches were conducted from the inception of the database to November 2022 on PubMed/MEDLINE, ScienceDirect, Web of Science, and Google/Google Scholar. Forty-four eligible publications were identified, published in the range from 1973 to 2020, and statistically analyzed. The pooled overall seroprevalence of BTV was 45.02% (95% confidence interval [CI]: 36.00-54.00%). The pooled seroprevalence was 49.70% (95% CI: 34.50-65.00%) in cattle, 47.00% (95% CI: 29.90-64.50%) in goats, 40.80% (95% CI: 19.60-63.90%) in camels, and 36.30% (95% CI: 29.00-44.90%) in sheep. The pooled seroprevalence decreased after 1990 and increased again after 2010. The highest pooled overall seroprevalence was found in the southeastern region, and the highest pooled overall seroprevalence was obtained by Competitive Enzyme-Linked Immunosorbent Assay. Finally, the seroprevalence in females (53.30%, 95% CI: 34.80-71.00%) was significantly higher than in males (28.10%, 95% CI: 17.40-40.30%) (p < 0.05). We showed that antibodies against BTV were common in African ruminants and camels. Monitoring the seroprevalence of BTV, as well as systematic and continuous surveillance of the Culicoides population, are encouraged to prevent and control the spread of BT.

Item Type: Article
DOI/Identification number: 10.1080/01652176.2024.2396118
Uncontrolled keywords: Bluetongue, domestic ruminants, seroprevalence, risk factors, meta-analysis, Africa
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Biosciences
Funders: University of Kent (https://ror.org/00xkeyj56)
SWORD Depositor: JISC Publications Router
Depositing User: JISC Publications Router
Date Deposited: 27 Sep 2024 14:52 UTC
Last Modified: 30 Sep 2024 08:06 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/107153 (The current URI for this page, for reference purposes)

University of Kent Author Information

Tsaousis, Anastasios D..

Creator's ORCID: https://orcid.org/0000-0002-5424-1905
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