Vaccinations are a critical public health intervention that protects populations from infectious diseases, reduces morbidity and mortality rates, and helps achieve herd immunity. According to the World Health Organization (WHO), vaccination successfully prevents between 3.5 million and 5 million deaths annually from various diseases, significantly improving life expectancy by averting life-threatening conditions. Vaccination enhances the body's natural immune response, promoting antibody production to strengthen internal defenses and reduce infection risks. It provides protection against a variety of diseases, including Hepatitis B, Malaria, Measles, Mumps, Tetanus, and Covid-19. However, vaccination strategies and coverage differ across regions and populations due to factors like healthcare infrastructure, government policies, cultural beliefs, and socio-economic conditions, leading to uneven disease prevention and exposing certain populations to preventable infections.
