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Enlu Zhou
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Fractured record keeping leaves Philly hospitals unsure which patients are vaccinated

The Challenges Vaccine Stocks Face As They Try To Fight Delta Variant

How will distribution differ for COVID-19 booster shots?

2022 INFORMS Conference on Service Science
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A Calif. elementary school teacher took off her mask for a read-aloud. Within days, half her class was positive for delta.

Shasha Han
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Improving your odds in the COVID-19 lottery

Hussein El Hajj
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Watch now: Deaths were up in the U.S., and McLean County, in 2020. Researchers hope to draw attention to reasons other than COVID.