Genetic characterization of foot-and-mouth disease virus in cattle in Northern Egypt

Faculty Veterinary Medicine Year: 2025
Type of Publication: ZU Hosted Pages:
Authors:
Journal: Veterinary World Veterinary World, 18(1): 238–248. Volume:
Keywords : Genetic characterization , foot-and-mouth disease virus , cattle    
Abstract:
Background and Aim: Foot-and-mouth disease (FMD) is a highly contagious viral disease that poses significant economic threats to livestock globally. This study aimed to confirm the presence of FMD virus (FMDV) in Egyptian cattle and identify the predominant serotypes contributing to outbreaks in Sharkia and Dakahlia provinces in 2022. Materials and Methods: A total of 65 cattle showing acute FMD symptoms were sampled. Desquamated epithelial tissues and oral secretions were analyzed using reverse transcriptase polymerase chain reaction with universal and serotype-specific primers. Seven representative samples underwent sequencing for phylogenetic and genetic variability analysis. Results: All sampled animals tested positive for FMDV. Serotype A accounted for 72.3% of cases, while 27.7% were serotype O. Sequence analysis identified FMDV serotype A (African topotype, genotype IV) and serotype O (East Africa-3 topotype) as the outbreak-causing strains. The identified strains exhibited significant genetic divergence from the vaccine strains used in Egypt, with notable amino acid substitutions in the VP1 protein’s G-H loop. These mutations raise concerns about the efficacy of existing vaccines against current field strains. Conclusion: The study highlights the ongoing threat of FMD in Egypt, particularly among smallholder cattle farmers. The genetic divergence between circulating FMDV and vaccine strains underscores the need to continuously monitor and update vaccine formulations to enhance disease control efforts. Implementing stricter animal movement regulations and tailored vaccination strategies is essential for effective management.
   
     
 
       

Author Related Publications

  • Sarah Jamal Abdalraouf Yousef, "Clinical Picture and Haemogram Profile Associated with Theileria annulata Infection in Cattle before and after Therapeutic Intervention", Nexus Academic Publishers, 2020 More
  • Sarah Jamal Abdalraouf Yousef, "Mutations in Theileria Annulata Cytochrome B Gene Associated with Buparvaquone Resistance in Cattle, Egypt", faculty of veterinary science, university o agriculture, 2020 More
  • Sarah Jamal Abdalraouf Yousef, "Molecular detection of mixed infection with peste des petits ruminants and retroviruses in Egyptian sheep and goats", Springer, 2023 More
  • Sarah Jamal Abdalraouf Yousef, "The anti- ectoparasite effects of different topical spots-on formulation against ticks and fleas in naturally infested stray and owned dogs", UNIV LJUBLJANA, VETERINARY FACULTY, 2021 More
  • Sarah Jamal Abdalraouf Yousef, "Virulence factors and antibiograms of Escherichia coli isolated from diarrheic calves of Egyptian cattle and water buffaloes", PLOS ONE, 2020 More

Department Related Publications

  • Ahmed Mohamed Abdelaal Mansur, "Clinical, laboratory and ultrasonographic investigations of left abomasal displacement in Holstein- Friesian cows", cairo, 2014 More
  • Ahmed Mohamed Abdelaal Mansur, "Prognostic Value of Serum Cardiac Troponin T and Nitric Oxide as Cardiac Biomarkers in Pregnancy Toxemic Goats", pakistan, 2013 More
  • Ahmed Mohamed Abdelaal Mansur, "Clinico-biochemical, ultrasonographic and pathological findings of hepatic abscess in feedlot cattle and buffaloes", india, 2014 More
  • Ahmed Mohamed Abdelaal Mansur, "Ultrasonography as diagnostic and prognostic approach for urolithiasis in Egyptian buffalo's calves", Egypt, 2013 More
  • Ahmed Mohamed Abdelaal Mansur, "Selected studies on foreign body impaction in goats with special reference to ultrasonography", india, 2014 More
Tweet