Cases in the U.S.

CDC COVID Data Tracker - Cases and Deaths by State

COVID-19 Vaccine Booster Shot

People who have had 2 shots of Pfizer-BioNTech or Moderna vaccines may need to start receiving a COVID-19 booster shot 8 months after their second dose.

COVID-19 Vaccines for People with Underlying Medical Conditions

If you have an underlying medical condition, this can help you make an informed decision about getting a COVID-19 vaccination.

Staffing Resources

Federal staffing resources for health departments.

How Much Do You Know about COVID-19 Vaccines?

Take this quiz to test your knowledge and learn about COVID-19 vaccines.

COVID-19 Travel Recommendations by Country

Search COVID-19 risk assessment by country larger map

Responding to COVID-19 Cases in K-12 Schools: Resources for School Administrators

A guide for school administrators on how to address COVID-19 cases in schools.

Frequently Asked Questions about COVID-19 Vaccination

Answers to commonly asked questions about COVID-19 vaccines, including vaccine cost, availability, and types.

COVID-19 and Animals

Animals and Coronavirus Disease 2019 (COVID-19)

Coronavirus Disease 2019 (COVID-19)

Coronavirus (COVID-19) Home Page

COVID Data Tracker Weekly Review

A review of the week's key data from CDC's COVID Data Tracker, narrative interpretations, and visualizations.

What Tribal Communities Need to Know About COVID-19 Vaccines

Facts about COVID-19 vaccines for American Indian and Native Alaskan tribal communities.

COVID-19 Contact Tracing

COVID-19 Contact Tracing Training Guidance and Resources

Contact Tracing Resources for Health Departments

CDC general principles for COVID and what CDC is doing to support contact tracing.

Types of Masks

Masks help stop the spread of COVID-19 to others. Find out how to wear, clean, and make masks.