The division of Bacteriology & Mycology came into existence in 1975 after bifurcation from Division of Virology and Bacteriology, Mukteswar and shifted to the Izatnagar campus of IVRI. Due to the urgent need of research work to be carried out on all aspects of different bacterial and mycotic infections, the division was separated and now it is working on most of the important economic diseases of livestock & poultry.