CDC has updated its guidance for people who are fully vaccinated. See Recommendations for Fully Vaccinated People.
CDC recommends schools continue to use the current COVID-19 prevention strategies for the 2020-2021 school year. Learn more
Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more

Health Departments: Information on COVID-19

Health Departments: Information on COVID-19
Updated Jan. 27, 2021
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COVID-19 Vaccination Resources

Find resources to help protect your community and prepare your program for COVID-19 vaccinations.


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For States, Tribes, Localities & Territories

Guidelines, tools, and resources from CDC and other organizations.

Clinician On-Call Center

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The Clinician On-Call Center is a 24-hour hotline with trained CDC clinicians standing by to answer COVID-19 questions from healthcare personnel on a wide range of topics, such as diagnostic challenges, clinical management, and infection prevention and control. Download or print: Clinician On-Call Center pdf icon[111 KB, 1 page]

To reach this service, call 800-CDC-INFO (800-232-4636) and ask for the Clinician On-Call Center.

Content describing non-CDC tools on this site is provided for informational purposes only and is not intended to indicate endorsement, actual or implied, of the tools. Additionally, information on this site is provided “as is,” for users to evaluate and make their own determination as to their effectiveness.

Archived Content

To find a list of content that has been archived for historical purposes, please visit our archive. Please note the content of these pages and files may be out of date as they are no longer being updated. View Archive