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16 Apr, 2024

With Time and Without Masks, COVID-19 Vaccines Wane in Protection

September 1, 2021 sarah JonasResearch Results

A study measured effectiveness of COVID-19 mRNA vaccines among health workers, most notably during the emergence of delta virus variant and coincident with end of state’s mask mandate, finding protection waned over time, dropping sharply 6-8 months after full vaccination.