Duck plague is an acute,contagious disease of ducks,geese,and swans that is caused by an alphaherpesvirus [duck plague virus (DPV); Anatid herpesvirus 1].
As one of the largest family in Angiosperm, Orchidaceae comprise five subfamilies-- Apostasioideae, Cypripedioideae, Epidendroideae, Orchidoideae and Vanilloideae. Dendrobiinae involves important orch