Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
The White House announced that vaccines will be required for international travelers coming into the United States, with an effective date of November 8, 2021. For purposes of entry into the United States, vaccines accepted will include FDA approved or authorized and WHO Emergency Use Listing vaccines. More information is available here.
Travel requirements to enter the United States are changing, starting November 8, 2021. More information is available here.

COVID-19 Vaccines for Specific Groups of People

COVID-19 Vaccines for Specific Groups of People
  • For some immunocompromised children aged 5–11 years old, CDC now recommends an additional dose of the Pfizer-BioNTech COVID-19 vaccine to complete the primary series – a total of three doses. See media statement | Spanish.
  • CDC now recommends booster shots at 5 months after the completion of the primary series of Pfizer-BioNTech COVID-19 vaccine for those aged 12 and older. See media statement | Spanish.

Vaccines Are Widely Available for Everyone 5 Years and Older

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  • Children ages 5–11 years can now get Pfizer-BioNTech COVID-19 vaccines.
  • Booster shots are available to everyone ages 16 years and older who is fully vaccinated.
  • Moderately or severely immunocompromised people ages 12 years and older who completed their Pfizer-BioNTech COVID-19 vaccine primary series and ages 18 years or older who completed their Moderna COVID-19 vaccine primary series should plan to get an additional primary dose at least 28 days after their second dose.

Children and Teens
Booster Shots
Immunocompromised People

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For Healthcare and Public Health

COVID-19 Clinical and Professional Resources