The immunization of animals has long been an effective and sustainable method of controlling and preventing infectious diseases and increasing livestock production. Vaccine has served as an important component in the field of veterinary medicine to improve the animal health. Appropriate administration of specific antigens which are present in vaccines can provide persistent and effective immunity against infections in animals. Feline vaccination, canine vaccination, farm animal vaccination and equine vaccination are some types of vaccinations which are used within this discipline. This book is meant for students who are looking for an elaborate reference text on vaccine design and technological advances in veterinary medicine. It aims to equip students and experts with the advanced topics and upcoming concepts in this area. Through this book, we attempt to further enlighten the readers about the new concepts in this field.