Immune Response of Pregnant Mares and their Foals for Inactivated Equine Influenza Vaccine

摘要

This study comprises the immune response of pregnant mares and their foals to monovalent inactivated freeze-dried Equine Influenza (EI) vaccine, reconstituted in Diethylaminoethyl (DEAE) Dextran solution as an adjuvant. It was found that mares developed high Haemagglutinating Inhibition (HI) titre at 3 weeks post vaccination and remain with protective level up to 6 months while their foals had moderate (HI) antibodies within 48 h post colostral suckling, the HI antibodies rise to a level similar to their dams within one to two weeks then persisted with considerable level up to 6 months of their age.