107301
For active immunisation of maternally derived antibody positive or negative calves from 9 days of age against BRSV and PI3V, to reduce the mean titre and duration of excretion of both viruses. Onset of immunity: 5 days for BRSV and 10 days for PI3V after a single vaccination. Duration of protective immunity: 12 weeks following a single dose. The duration of protective immunity against the PI3V fraction may be reduced in MDA positive calves vaccinated before 3 weeks of age. Dosage & Administration A single dose of 2ml of reconstituted vaccine should be given intranasally using the intranasal applicators provided to cattle from the age of 9 days. It is recommended to change applicators between animals to avoid transmitting infectious organisms.