What is the efficacy of the second, third, and fourth dose of the COVID-19 mRNA vaccine? - News-Medical.Net

Investigators examined the effectiveness of two, three, and four SARS-CoV-2 vaccine doses during the Omicron prevalent phases.

In a recent article posted in the Morbidity and Mortality Weekly Report, investigators examined the effectiveness of two, three, and four severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) … [+5402 chars]

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