The CDC Finally Reveals Its Estimate for How Many Americans Have 'Natural Immunity': 146.6 Million People - Becker News
“This study demonstrated that natural immunity confers longer lasting and stronger protection against infection, symptomatic disease and hospitalization caused by the Delta variant of SARS-CoV-2"...
https://beckernews.com/the-cdc-finally-reveals-its-estimate-for-how-many-americans-have-natural-immunity-42976/