Childhood immunization is the process of giving vaccines to children to protect them from various infectious diseases. Vaccines work by stimulating the immune system to recognize and fight off specific germs, helping to prevent illnesses such as measles, mumps, and whooping cough. Immunizations are typically administered during regular check-ups and follow a recommended schedule to ensure children receive the necessary protection at the right ages. Vaccines are safe and effective, and they not only protect the vaccinated child but also help to create herd immunity in the community. This means that when a large number of people are immunized, the spread of diseases is reduced, protecting those who cannot be vaccinated, such as infants or individuals with certain health conditions.