Cell-mediated immunity in tropical theileriasis (Theileria annulata infection).
Migration of peripheral leucocytes collected from Theileria annulata carrier cattle was inhibited in the presence of piroplasmal antigen. The degree of inhibition was antigen density dependent. The same antigen did not inhibit migration of leucocytes obtained from clean animals, raised under tick-free conditions. The carrier animals exhibited typical skin sensitivity reaction on intradermal inocluation of the piroplasmal antigen. The known negative animals failed to evince a similar reaction.
D000818:Animals; D002417:Cattle; D002464:Cell Migration Inhibition; D007111:Immunity, Cellular; D007962:Leukocytes / Q000276:immunology; D008297:Male; D012882:Skin Tests; D013801:Theileriasis / Q000276:immunology*