A planned infection program for immunizing mares against viral rhinopneumonitis.
D000034:Abortion, Veterinary; D000818:Animals; D005260:Female; D006734:Horse Diseases; D006736:Horses; D007114:Immunization; D011247:Pregnancy; D014611:Vaccination; D014777:Virus Diseases
ABORTION, VETERINARY; HORSE DISEASES; VIRUS DISEASES