Vaccines play an essential role in keeping humans and animals healthy. The vaccine has been one of the most important interventions designed to both prevent and to treat diseases, strengthening and improving the weakened immune system. In this book, the authors discuss veterinary sector vaccines and how they may be applied to improve human vaccines; immunization recommendations for healthcare workers; a new vaccination method for exogenous and endogenous antigen initiated disorders; the impact of vaccination on disease prevention and control; and T-Cell vaccination for multiple sclerosis.