Vet Med - Czech, 2024, 69(3):67-76 | DOI: 10.17221/95/2023-VETMED

Risk analysis and seroprevalence of bovine ephemeral fever virus in Punjab, PakistanOriginal Paper

S Nadeem1, R Aslam1, S Rahman1, M Kasib Khan2
1 Institute of Microbiology, University of Agriculture Faisalabad, Faisalabad, Pakistan
2 Department of Parasitology, University of Agriculture Faisalabad, Faisalabad, Pakistan

Bovine ephemeral fever (BEF) is a vector-borne viral disease caused by the RNA virus which belongs to the genus Ephemerovirus and the family Rhabdoviridae. To evaluate the effect of the risk factors like the breed of cattle and buffaloes, age, sex, lactation, housing and region on the bovine ephemeral fever virus (BEFV) prevalence, ELISA and virus neutralisation (VN) tests (n = 600) were performed for the BEFV prevalence. The seroprevalence in cattle was 45.6% and 42% by ELISA and VN, respectively (P = 0.001). The breed-wise seropositive ratio was (55–64%) in cattle and (22.5–18.3%) in buffaloes by VN and ELISA. The sex-wise prevalence was (40–49.4%) in females and (35.8–46%) in males by VN and ELISA in cattle and a similar prevalence was reported in buffaloes. The age-wise prevalence in bovines by ELISA was 5.33, 22.66 and 17.66% in the age group < 1 year, 1–3 years and > 3 years, respectively. The disease prevalence was higher in the age group of 1–3 years. The prevalence was higher during the 3rd lactation in bovines. The region-wise prevalence was higher in the 07 districts while lower (18–21%) in Rawalpindi District by VN and ELISA, respectively (P = 0.001). Commercial dairy farms of cattle showed a higher disease prevalence (52% and 44%) than non-commercial farms (38% and 36%) by ELISA and VN, respectively (P = 0.227). Exotic cows showed higher disease prevalence (76.67% and 70%) by ELISA and VN. The mortality in bovines was 5% (7.7% and 2.3%) in the cattle and buffaloes. The case fatality of BEFV in bovines was 12.25%. There was a significant effect of the risk factors like the breed, age, sex, lactation, housing and region on the BEFV prevalence. This is the first comprehensive study of BEFV in Pakistan.

Keywords: enzyme-linked immunosorbent assay; Ephemerovirus; lactation; Rhabdoviridae; risk factors; vector-borne; virus neutralisation (VN)

Received: September 21, 2023; Revised: January 12, 2024; Accepted: January 29, 2024; Prepublished online: March 26, 2024; Published: March 28, 2024  Show citation

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Nadeem S, Aslam R, Rahman S, Kasib Khan M. Risk analysis and seroprevalence of bovine ephemeral fever virus in Punjab, Pakistan. Vet Med - Czech. 2024;69(3):67-76. doi: 10.17221/95/2023-VETMED.
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