Immunizations (vaccinations) are given to initiate or augment resistance to an infectious disease. Immunizations provide a specialized form of immunity that provides long-lasting protection against specific antigens, such as certain diseases. Routine immunizations are administered with a needle since they need to be given right into the muscle. Reducing the level of anxiety for your child is perhaps the best way to help limit the pain during a vaccine.
Review Date 2/24/2022
Updated by: Neil K. Kaneshiro, MD, MHA, Clinical Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.