Vaccination is crucial for several reasons. Firstly, it helps in the prevention of infectious diseases such as measles, polio, and influenza. By creating immunity within a population, vaccines protect both vaccinated individuals and those who are unable to be vaccinated due to medical reasons. This concept is known as herd immunity. Secondly, vaccines reduce the burden of disease, lowering healthcare costs and improving quality of life. They also prevent the spread of diseases to vulnerable populations, such as infants and the elderly.
