THE EFFECT OF Theileria INFECTION ON THE IMMUNE RESPONSES OF CATTLE TO RINDERPEST VACC
Theileria INFECTION
CATTLE
rinderpest virus
vaccine
Immune responses to rinderpest virus vaccine were studied in 25 calves (3-months old) naturally infected with Theilria and non-infected 25 calves (3-months old) as control group. The immune responses to rinderpest virus vaccine before vaccination and 21 days post-vaccination were examined by serum neutralization test on tissue culture. The results indicated that calves affected with theileriasis showed diminished level of antibodies after 21 days post-vaccination with rinderpest virus vaccine in comparisons with those of the Theileria non-infected calves
