Avian influenza is a contagious viral disease affecting the respiratory. digestive and nervous system of birds belong to orthomyxovirus family. In the chicken Mx gene. type of amino acid at position 631 determines the antiviral activity against influenza and vesicular stomatitis virus. https://www.alarecre.com/NHL-Dallas-Stars-Black-Background-iPhone-13-Pro-Max-MagSafe-Case-p96318/