Reconstitute the entire contents of the vaccine vial with all of the sterile diluent using the needle and syringe provided. For each animal, withdraw 2 ml of reconstituted vaccine, substitute the needle with the nasal applicator and instill 2 ml into one nostril, holding head up gently but firmly. One applicator is supplied for every dose.
Take care to avoid the introduction of contamination while reconstituting and withdrawing the vaccine.
The vaccine should be used immediately after reconstitution and not stored.
Vaccination programme
Animals older than 10 weeks of age
A single dose of vaccine should be administered.
Animals from 3 weeks to 10 weeks of age
Since maternal antibodies may interfere with the development of immunity in very young calves it is advisable to give two doses of vaccine, at least 14 days apart. The first dose may be given at any time from 3 weeks of age. The second dose should not be given until at least 10 weeks of age.
Revaccination
In order to maintain immunity, animals should be revaccinated every 6 months with a single dose of vaccine.
Alternatively, in areas where IBR is enzootic, revaccination can be given before outbreaks are expected. In particular bought in heifers or dairy replacements returning to the herd after being reared elsewhere, should be vaccinated before joining adult cows.