There are THREE primary flu vaccinations before annual boosters:
1st – Primary Vaccination must be given
2nd – Primary Vaccination between 21 and 92 days after 1st primary vaccination
3rd – Primary Vaccination between 150 and 215 days after 2nd primary vaccination
Further booster vaccinations at intervals of not more than a year apart (or such lesser time as the Authority may, in an emergency, decide)

REMEMBER - The first two vaccinations must be given BEFORE a horse can be taken to a racetrack
REMEMBER - None of the vaccinations must have been given on the day of a race in which the horse is declared to run or on any of the six days before the race
REMEMBER - to COMPLETE the programme by having the third vaccination – the time for this could well be in Autumn after the horse has been turned out for winter
REMEMBER – The current Owner/Trainer of the horse is responsible for ensuring the FLU VAC RECORD is correct NOT the BHRC