Most of the studies used Equilis Prequenza Te, a vaccine that protects against the three equine influenza strains (the same as Equilis Prequenza), as well as tetanus.
Enamikes uuringutes kasutati Equilis Prequenza Ted, mis on hobuste gripiviiruse kolme tüve (sama, mis Equilis Prequenza) ja teetanuse eest kaitsev vaktsiin.