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 Data Tracker Weekly Review
A review of the week’s key data from CDC’s COVID Data Tracker, narrative interpretations, and visualizations.
Frequently Asked Questions about COVID-19 Vaccination
Answers to commonly asked questions about COVID-19 vaccines, including vaccine cost, availability, and types.
Join DHS for #SeeSayDay on September 25 and Protect Your Community
An informed public plays a critical role in keeping our communities safe. September 25 is “If You See Something, Say Something®” Awareness Day, also known as #SeeSayDay. “If You See Something, Say Something” is more than just a slogan; it’s how we protect our communities. On September 25, we encourage you to participate in…
COVID-19 Contact Tracing
COVID-19 Contact Tracing Training Guidance and Resources
Toolkit for Responding to COVID-19 Cases
Toolkit for K-12 school administrators with resources for responding to COVID-19 cases
COVID-19 Forecasts: Cases
Learn about COVID-19 forecasts and modeling for new cases.
CDC’s COVID-19 Weekly Partner Calls
CDC’s COVID-19 Weekly Partner Calls provide a broad base of partners with updates on the latest guidance, hot topics, and scientific insight on CDC’s COVID-19 response efforts. Each week the call focuses on a specific topic, diving deeply to provide more information, followed by a Q&A portion of the call. Questions are accepted ahead of…
Customizable Contact Tracing Notification Letters
Sample letters for K-12 school administrators to respond to COVID-19 cases
COVID-19 Vaccines that Require 2 Shots
If you receive a Pfizer-BioNTech or Moderna COVID-19 vaccine, you will need 2 shots to get the most protection.