Livestock vaccination plays a crucial role in preventing infectious diseases and maintaining animal health and productivity. Diseases such as Foot and Mouth Disease, Hemorrhagic Septicemia, PPR, and Newcastle disease can cause severe economic losses to farmers due to mortality, reduced production, and treatment costs. Vaccination works by stimulating the animal?s immune system to develop protection against specific pathogens. Regular vaccination helps reduce disease outbreaks, improve milk, meat, and egg production, and increase farm profitability. It also protects human health by preventing zoonotic diseases such as brucellosis. Proper vaccination practices, including maintaining the cold chain, vaccinating healthy animals, and following recommended schedules, are essential for effective disease control. Therefore, vaccination is an important component of modern livestock management and sustainable animal production.