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This report describes COVID-19 vaccine effectiveness time frames among people who received their first and second doses of the vaccine series, and effectiveness of...

Background: The Omicron (B.1.1.529) variant of SARS-CoV-2 has rapidly achieved global dissemination, accounting for most infections in the United States by December 2021. Risk...

COVID Data Tracker - 22 hours

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CDC’s home for COVID-19 data. Visualizations, graphs, and data in one easy-to-use...

The Omicron coronavirus variant is moving much faster than researchers can, worsening a longstanding problem: The agency must make tough decisions with scant...

Early data suggest the new variant may cause less severe disease and death—but hospitals are stretched to their...

Early data suggest the new variant may cause less severe disease and death—but hospitals are stretched to their...

While the omicron variant continues to infect people around the world, researchers at the University of Missouri have identified the highly prevalent, specific mutations...

Hospitals were already short-staffed, the result of pandemic trauma, burnout, and the Great Resignation; now, with alarming numbers of those who remain calling in...

Tracking COVID-19 Prevalence with Metro Plant Wastewater The number of reported cases of COVID-19 infections in the seven-county metro area corresponds to the prevalence...