Infectious bursal disease also known as Gumboro disease is a highly contagious viral disease caused by a small hardy Avibirnavirus belonging to the family Birnaviridae which causes significant economic losses due to mortality reduced performance and immunosupression that lead to increased susceptibility to other diseases. The virus is resistant to a wide range of temperature and pH although can be removed by most disinfectants. It is rapidly spread by direct between birds and can survive for