title: Immunity to dictyocaulus viviparus in calves. Vaccination with larvae attenuated by triethylene melamine (TEM) or x-irradiation and protection against field challenge.
mesh_terms: D000818:Animals; D001835:Body Weight; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D004022:Dictyocaulus Infections / Q000517:prevention & control*