Are you ready for National Infant Immunization Week (NIIW)? It's next week, April 22-29. Since 1994, this annual observance highlights the critical role vaccination plays in protecting our children, communities, and public health. CDC has created this excellent website with links to events and activities, online resources, sample social media content, and other promotional materials. We hope you will find these resources helpful as you promote NIIW messages. Also, be sure to let CDC know how you participate in NIIW this year by e-mailing completing this activity form. While vaccines are important throughout the lifespan, NIIW focuses specifically on the benefits of immunization for children under the age of two.