Effectiveness of mRNA Vaccination in Preventing COVID-19–Associated Invasive Mechanical Ventilation and Death

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Wm. Stewart

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Mar 28, 2022, 7:16:37 AMMar 28
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"Receiving 2 or 3 doses of an mRNA COVID-19 vaccine was associated with
a 90% reduction in risk for COVID-19–associated IMV or death. Protection
of 3 mRNA vaccine doses during the period of Omicron predominance was 94%."

https://www.cdc.gov/mmwr/volumes/71/wr/mm7112e1.htm

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