Recommended key concepts and guidance about COVID-19 contact tracing for health departments and public health workers.
Information about COVID-19 quarantine for K-12 schools
CDC COVID Data Tracker - Cases and Deaths by State
A guide for school administrators on how to address COVID-19 cases in schools.
Schools & Childcare: Guidance for School Settings
Standard Operating Procedure (SOP) for Triage of Suspected COVID-19 Patients in non-US Healthcare Settings: Early Identification and Prevention of Transmission during Triage
Standard Operating Procedure (SOP) for Triage of Suspected COIVD-19 Patients in non-US Healthcare Settings
Federal staffing resources for health departments.
Search COVID-19 risk assessment by country larger map
The Pfizer-BioNTech COVID-19 vaccine is an mRNA vaccine that requires 2 shots, 21 days apart. Learn about safety data, efficacy, and clinical trial demographics.
The Moderna COVID-19 vaccine is an mRNA vaccine that requires 2 shots, 28 days apart. Learn about safety data, efficacy, and clinical trial demographics.
Recommendations on what activities people can do after they have been fully vaccinated, including how to gather safely with vaccinated and unvaccinated people.
Interim public health recommendations describing the type of activities people who are fully vaccinated can do once fully vaccinated.
Healthcare Facilities That Have Implemented COVID-19 Electronic Case Reporting
FAQ for Healthcare Professionals
A review of the week's key data from CDC's COVID Data Tracker, narrative interpretations, and visualizations.
Science Brief: Evidence used to update the list of underlying medical conditions that increase a person's risk of severe illness from COVID-19
Supporting evidence for CDC's list of underlying medical conditions that put individuals at increased risk for severe illness from COVID-19.
Underlying Medical Conditions Associated with High Risk for Severe COVID-19: Information for Healthcare Providers
Guidance for clinical healthcare workers on clinical care for patients with underlying medical conditions who are diagnosed with COVID-19.
People of Any Age with Underlying Medical Conditions
One-Stop Shop for COVID-19 Resources
COVID-19 vaccines are safe and effective. Millions of people in the United States have received COVID-19 vaccines, and these vaccines will undergo the most intensive safety monitoring in U.S. history. CDC recommends you get a COVID-19 vaccine as soon as you are eligible. Adverse events described on this page have been reported to the Vaccine Adverse Event Reporting System (VAERS).