Duvaxyn IE Plus Presentation Inactivated equine influenza virus, strains per 1 ml dose: A/equi-1/Prague/56, 15- 18 μg HA*, A/equi-2/Suffolk/89 (European type), 15 - 18 μg HA* and A/equi-2/Newmarket/1/93 (American type), 15 - 18 μg HA* and Carbopol 934P as adjuvant. *Haemagglutinin