Jan 19 (Reuters) - People who had previously been infected with COVID-19 were better protected against the Delta variant than those who were vaccinated alone, suggesting that natural immunity was a more potent shield than vaccines against that variant, California and New York health officials reported on Wednesday.
https://www.reuters.com/business/hea...us-2022-01-19/
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So all you morons that said there is no such a thing as natural immunity. Follow the science.
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