Additional file 1. Supplementary Figure 1: comparison with the deduced amino acid sequence of the OIE-ESP recommended vaccine strain against Florida clade2. Supplementary Figure 2: comparison with the deduced amino acid sequence of the whole inactivated EI vaccine strain available in Egypt (Egypt/6066NAMRU-VSVRI/2008). Supplementary Figure 3: Comparison of the deduced amino acid sequences of the present study with the EI vaccine (KY97) strain available in Egypt as Fluvac innovator® 4 (Zoetis-US).