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Study shows COVID-19 vaccines offer lasting protection
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Study shows COVID-19 vaccines offer lasting protection

by University of North Carolina at Chapel Hill Credit: Pixabay/CC0 Public Domain Vaccination offers long-lasting protection from the worst outcomes of COVID-19, according to a new study by the University of North Carolina at Chapel Hill. The emergence of the delta and omicron variants has raised questions about whether breakthrough infections are caused by waning immunity or...