A Review on Vaccine Safety Surveillance in Pharmacovigilance

Vaccination is one of the most important achievements in public health. Vaccines help prevent diseases and reduce mortality worldwide. However, vaccine safety is a critical issue that ensures public confidence and effective immunization coverage. This review focuses on the principles of vaccine safety, why vaccine important to humans, the vaccine development process, and post-marketing surveillance systems. It also discusses various adverse events following immunization (AEFI), safety monitoring programs, and challenges in addressing misinformation. With advances in science and technology, vaccine safety evaluation has become more efficient, and also know how vaccine work in human body, ensuring that vaccines remain safe and effective for global.