This is a combined live vaccine for the prevention or decrease the Infectious Bronchitis ( IB ) and Newcastle Disease ( ND ) in poultry. It contains both the live B1 strain of the ND Virus and the live H120 strain of the IB virus which were independently propagated in SPF embryonated eggs, harvested, mixed with a stabilizer and lyophilized. The appearance of the vaccine is a pale gray-white dried cake dissolving quickly with no foreign substances or additional odor. The vaccine becomes a homogenized suspension after mixing with the given the diluent.