Occasionally in numerous species of mammals such as whales, seals, tigers, and minks Seal H7N7 & whale H13N9Tiger HPH5N1 Mink H9N2 Respiratory disease HA Seal H7N7 & whale H13N9: Siaα2,3GalTiger HPH5N1 HA with Q226 and G228 (H3 numbering): predicted to prefer Siaα2,3GalMink H9N2 HA with 226L: increased binding to Siaα2,6Gal [51,52,53,54,55,56]