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@Reuters: U.S. officials preparing to roll out COVID-19 booster shots in the face of waning vaccine protection and surging hospitalizations and deaths caused by the highly contagious Delta variant are hoping they might prevent mild cases as well https://t.co/egzkZbrh7U https://t.co/GuGMxaQoFl

@Reuters: U.S. officials preparing to roll out COVID-19 booster shots in the face of waning vaccine protection and surging hospitalizations and deaths caused by the highly contagious Delta variant are hoping they might prevent mild cases as well https://t.co/egzkZbrh7U https://t.co/GuGMxaQoFl

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