Immunity to Haemonchus contortus infection: relationship between age and successful vaccination with irradiated larvae.
D000375:Aging; D000818:Animals; D009349:Nematode Infections / Q000517:prevention & control / Q000662:veterinary*; D011830:Radiation Effects; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*; D014251:Trichostrongyloidea / Q000528:radiation effects*; D014611:Vaccination / Q000662:veterinary; D014612:Vaccines
D014612:Vaccines