The vaccine strains vCP2242 and vCP1533 are recombinant canarypox viruses expressing the haemagglutinin HA gene from the equine influenza virus strains A/ equi-2/ Ohio/ 03 (American strain) and A/ equi-2/ Newmarket/ 2/ 93 (European strain), respectively.
Vaktsiini tüved vCP2242 ja vCP1533 on rekombinantsed canarypox viirused, mis esindavad hobuste gripi tüvede A/ equi- 2/ Kentucky/ 94 (ameerika tüvi) ja A/ equi- 2/ Ohio/ 03 (euroopa tüvi) hemaglutiniin HA geeni.