The early development of immunity to Eimeria maxima in comparison with that to Eimeria tenella.
D000818:Animals; D002645:Chickens; D003048:Coccidiosis / Q000209:etiology / Q000276:immunology / Q000382:microbiology / Q000662:veterinary*; D004539:Eimeria / Q000276:immunology* / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D011201:Poultry Diseases / Q000209:etiology / Q000276:immunology* / Q000382:microbiology; D013997:Time Factors