The influenza vaccine that we use at Evolution Equine is Equilis Prequenza, and Equilis Prequenza Te (combined with tetanus). The datasheet for Equilis Prequenza Te is available here: Link to EPAR on European Medicines Agency website
The relevent information taken from that document are:
The active substances are:
|Equine influenza virus strains:||A/equine-2/ South Africa/4/03|
Proven activity of the product is:
Active immunisation of horses from 6 months of age against equine influenza to reduce clinical signs and virus excretion after infection, and active immunisation against tetanus to prevent mortality.
|Onset of immunity:||2 weeks after the primary vaccination course (first 2 doses)|
|Duration of immunity:||5 months after the primary vaccination course (first 2 doses)|
|12 months after the first revaccination (and subsequent boosters)|
|Onset of immunity:||2 weeks after the primary vaccination course|
|Duration of immunity:||17 months after the primary vaccination course|
|24 months after the first revaccination|
The timings schedule for a full programme are:
From 6 months of age: 2 injections, 4 weeks apart of Equilis Prequenza Te. Followed by a booster 5 months after the second dose. Thereafter boosters at 12 month intervals.