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Three years on, COVID is clearly here to stay. So what do we do now?. Paul A. Offit, M.D. is the Director of the Vaccine Education Center at the Children's Hospital of Philadelphia and the Maurice R. Hilleman Professor of Vaccinology and Professor of Pediatrics at the University of Pennsylvania.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.