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Effects of coadministration of foot and mouth disease vaccine and inactivated parapoxvirus ovis on humoral immunity in cattle
(Polska Akademia Nauk, 2025) Canbar, R.; Uslu, M.
Foot and mouth disease (FMD) is an acute viral disease in animals. Inactive parapoxvirus ovis (IPPVO) strengthens humoral immunity. This study aimed to determine the effect of IPPVO application together with FMD vaccine on cattle immunity. It included 30 Holstein cattle randomly divided into two groups: one was administered only the FMD vaccine, and the other was administered the FMD vaccine and IPPVO simultaneously. Control blood was collected from all animals at 0 hours. Serum TNF-α, IL-1β, and IL-6 levels were measured in blood samples collected at 4, 8, 12, 16, and 24 hours post-vaccination, while serum IgG and IgM levels were measured in blood samples collected at 4, 8, 12, 16, and 20 days post-vaccination using ELISA kits. While no changes in serum TNF-α, IL-1β, and IL-6 levels were detected in the FMD group, IL-1β levels significantly increased (peaking at four hours) in the FMD + IPPVO group. In the FMD group, while IgG levels increased significantly (peaking at 16 days), IgM levels did not change. In the FMD + IPPVO group, IgG level on day 8 days was higher than the 16 days value. Also, the IgM level increased significantly on day 16. In conclusion, the application of FMD with IPPVO increases the primary immune response (IgM), but it does not effect the long-term immune response (IgM).