02/01/2026
It’s all based on science not theories.
The AAP’s recommended pacing of childhood vaccines considers when children are most likely to be exposed to contagious diseases and when children’s immune systems will respond best. This timing has kept millions of kids healthy, so they can focus on growing, playing, and learning.
Our recommendations are based on decades of research and the expertise of pediatricians and public health professionals. Learn more about AAP's 2026 immunization schedule: https://bit.ly/2TPNAkc