Vaccination: A Cornerstone of Global Public Health

Vaccination is one of the most effective public health interventions, preventing millions of deaths each year and reducing the burden of infectious diseases worldwide. Through the stimulation of adaptive immunity, vaccines protect individuals and communities by reducing disease transmission and controlling outbreaks. Despite their proven efficacy, vaccine hesitancy, misinformation, and inequitable access continue to present significant challenges. This article provides an overview of the principles of vaccination, types of vaccines, global impact, and challenges in vaccine delivery. Strengthening immunization systems and promoting accurate public education are essential for sustaining progress in disease prevention and global health security.