Vaccine Education Center
The Vaccine Education Center at Children’s Hospital of Philadelphia provides complete, up-to-date and reliable information about vaccines across the lifespan. We are a member of the World Health Organization's (WHO) Vaccine Safety Net because our website meets the criteria for credibility and content as defined by the Global Advisory Committee on Vaccine Safety. Learn more about the WHO’s Vaccine Safety Net.
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June 2025: Understanding recent announcements about COVID-19 vaccines
Dr. Paul Offit discusses recent announcements related to COVID-19 vaccines, including a proposed framework for thinking about COVID-19 vaccines and an announcement about who will be able to get COVID-19 vaccines.
Vaccines and Diseases
Learn about vaccines and the diseases they prevent.
Vaccine Safety
Find info about vaccine ingredients, conditions discussed in relation to vaccines, and other common vaccine safety concerns.
Vaccine Schedule
See when vaccines are recommended across the lifespan, considerations for specific populations, and answers to other schedule-related questions.
Vaccine Science & History
Get info about vaccine development and licensure, history, and global vaccine considerations.
Human Immune System
Review info about the types of immunity, how the immune system develops and works, what happens when it doesn’t work properly, and more.
About the Vaccine Education Center
Learn about the Vaccine Education Center, our programs, and our team.
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