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. Influenza: Onset of immunity - 2 weeks after primary vaccination course Duration of immunity - 5 months after them primary vaccination course. 12 months after the first revaccination Tetanus: 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 Revaccination Influenza The first revaccination (third dose) against equine influenza is given 5 months after the primary vaccination course. This revaccination results in immunity to equine influenza lasting at least 12 months. The second revaccination is given 12 months after the first revaccination. The alternate use, at 12 months interval, of a suitable vaccine against equine influenza, containing the strains A/equine-2/South Africa/4/03 and A/equine-2/Newmarket-2/93, is recommended to maintain immunity levels for the influenza component. Tetanus The first revaccination is given not later than 17 months after the primary vaccination course. Thereafter a maximum interval of two years is recommended
