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CDC: mRNA Vaccine Efficacy Waned Over Time
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The Centers for Disease Control and Prevention released data from a study showing the effectiveness of mRNA COVID-19 vaccines waned over the course of several months.
News 19 is North Alabama's News Leader! We are the CBS affiliate in North Alabama and the Tennessee Valley since November 28, 1963.
News 19 is North Alabama's News Leader! We are the CBS affiliate in North Alabama and the Tennessee Valley since November 28, 1963.