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Thousands of Doses of Pfizer COVID-19 Vaccine, Quarantined Due to Anomaly

For a Faster, Cheaper Way to Identify New COVID-19 Cases, Look in the Sewer

Santhosh Saravanan
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Millions of Americans Haven't Gotten Their Second COVID-19 Vaccination on Time

Isaac Bleecker
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Dry Ice is a Hot Commodity Because of the Vaccine

Scientists Warn Even Small Thanksgiving Gatherings Could Spread COVID-19

Kara Combs
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Sadie Cox
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The U.S. May Soon Have a Third Vaccine. Here's How It Works.