Veterinary vaccine administered to animals to protect themselves from the infectious diseases and also to protect the humans. Veterinary vaccines will improve the health of companion animals, which leads to increase production of livestock in a cost-effective manner and prevent disease/infection transmission from animal-to-human from both domestic and wildlife animals. Several vaccine types can de distinguished among the 2nd generation of veterinary vaccines, depending upon whether they are live or inactivated, usage of the specific rabies virus strain & the characteristics of the cell substrate chosen for viral replication. Third generation of live veterinary rabies vaccine has been developed using recombinant DNA technology in recent times. Depending upon the expression system these vaccines are used either parentally or orally. Oral rabies vaccine is widely used in foxes in Europe and in raccoons in the USA. Veterinary biologics are regulated by the USDA Center for Veterinary Biologics. The global animal vaccines market is poised to reach USD 7.68 Billion by 2021 from USD 5.81 Billion in 2016, at a CAGR of 5.8% from 2016 to 2021.