May 13, 2025

Vaccine Effectiveness Declines Overall, Remains Strong in Preventing Hospitalization

By: Stacy M. Brown Vaccine-induced protection against SARS-CoV-2 infection begins to decrease over time. In a blunt – perhaps troubling – assessment about the need for a third vaccine shot, Centers for Disease Control and Prevention Director Dr. Rochelle Walensky said the agency examined numerous cohorts through the end of July, and early August and […]

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