Vaccinating with Izovac CHB results in; o Less outbreak of the disease o Easier and better control of the flock o Inhibition of losses in ovodeposition o Absence of shell irregularities o Reduces the cost of vaccinating twice to once o Optimum performance of flock o Increase in production in layers and breeders o Active against Newcastle disease, respiratory and nephropathy forms of infectious Bronchitis. Composition: each dose of vaccine contains: o Live attenuated Newcastle disease virus strain Clone:106EID50 o Live attenuated Infectious Bronchitis virus strain Massachusetts H120: 103EID50 o Live attenuated Infectious Bronchitis virus strain 28/86: 103EID50 In stabilizing solution and excipients q.s to one doses