Resistance in young chicks to reinfection by immunization with two doses of oocysts of Eimeria acervulina.
D000818:Animals; D002645:Chickens; D003048:Coccidiosis / Q000276:immunology / Q000517:prevention & control*; D004539:Eimeria / Q000276:immunology*; D007114:Immunization; D007115:Immunization Schedule; D011201:Poultry Diseases / Q000276:immunology / Q000517:prevention & control*