3]. The mechanisms of reassortment and point mutations may give rise to “antigenic shift” and “antigenic drift” within HA and NA genes, respectively, facilitating the emergence of new subtypes and lineages of influenza viruses. As a result, total 18 HA and 11 NA subtypes of IAV [14,15,16] and two lineages (Victoria/B and Yamagata/B) of IBV have been reported so far in different hosts