Vaccine Education Center
The Vaccine Education Center at Children's Hospital of Philadelphia provides complete, up-to-date and reliable information about vaccines to parents and healthcare professionals. 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.
Protecting the Public with Limited COVID-19 Vaccine Supply: 1 Or 2 Doses?
Dr. Paul Offit explains what is missing from discussions considering giving more people a single dose of the limited COVID-19 vaccine supply, compared with fewer people getting two doses, as originally recommended.