Author: Coronavirus Disease 2019 (COVID-19) Situation Update

Use these recommendations to implement wastewater-based disease surveillance. Wastewater-based disease surveillance is a rapidly developing science, and CDC will update guidance and information as it becomes available.

To develop a common understanding of what constitutes SARS-CoV-2 reinfection, CDC proposes an Investigative Criteria for Suspected Cases of SARS-CoV-2 Reinfection.

Use this guidance to implement wastewater-based disease surveillance. Wastewater-based disease surveillance is a rapidly developing science, and CDC will continue to update guidance and information as it becomes available.

Mitigation guidance and considerations for community organizations, gatherings and events, and communities of faith for reducing spread of COVID-19.

Learn the 8 things you need to know about where U.S. COVID-19 vaccination plans since a vaccine may become available before the end of the year.

Safety is a top priority for COVID-19 vaccines. Learn how the U.S. vaccine safety system is ensuring the safety of COVID-19 vaccines.