Adult vaccination is a crucial component of public health that helps prevent the spread of infectious diseases, protects vulnerable populations, and reduces healthcare costs. Vaccines stimulate the immune system to recognize and fight off specific pathogens, thereby providing immunity against diseases such as influenza, pneumonia, hepatitis, and more. With the increasing prevalence of vaccine-preventable diseases, adult vaccination is more important than ever, particularly for populations at higher risk due to age, chronic conditions, or occupational exposures.