World Study Confirms Protective Benefits of mRNA COVID-19 Vaccines

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https://www.cdc.gov/mmwr/volumes/70/wr/mm7013e3.htm

April 5, 2021 | Originally published by Centers for Disease Control and Prevention (CDC) on March 29, 2021

A new CDC study provides strong evidence that mRNA COVID-19 vaccines are highly effective in preventing SARS-CoV-2 infections in real-world conditions among health care personnel, first responders, and other essential workers.  These groups are more likely than the general population to be exposed to the virus because of their occupations.

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