Eimeria brunetti: cross infections in chickens immunized to E. maxima.
D000367:Age Factors; D000818:Animals; D001835:Body Weight; D002645:Chickens; D003048:Coccidiosis / Q000517:prevention & control / Q000662:veterinary*; D003428:Cross Infection; D004539:Eimeria / Q000254:growth & development*; D005260:Female; D007115:Immunization Schedule; D008297:Male; D010063:Ovum; D010270:Parasite Egg Count; D011201:Poultry Diseases / Q000517:prevention & control*; D013997:Time Factors