Experimental infection of Ancylostoma caninum in chickens: immunization through transfer of sensitized bursal cells.

An attempt has been made to demonstrate the immune response in chickens to infection by the dog hookworm Ancylostoma caninum following transfer of sensitized bursal cells from infected donor chickens. Recipients were challenged with a dose of 500 larvae each, 1, 3 and 5 days after cell transfer. The immune response was found to be more pronounced in recipients challenged 5 days after cell transfer than in those challenged 1 or 3 days after transfer and those which received non-sensitized bursal cells.