Systematic Veterinary Virology

CONTROL

• Vaccines: Influenza vaccines are used in competition horses in countries where the infection is reported. In free countries vaccination is prohibited except for sport horses participating to international races. Both live and inactivated equine influnza vaccines are available.
• Three doses of the killed-virus vaccine are administered 3-6 weeks apart starting at 6 months of age for younger horses. Revaccination should be done at intervals of 3 to12 months depending on age and risk of exposure
• A modified live equine AE-2 influenza vaccine, when administered intranasally offers protection for 6 months.
• Biosecurity measures: Since the infection is highly contagious the infected horses should be immediately separated and isolated.