FILE PHOTO: A pharmacist prepares a dose of the AstraZeneca COVID-19 vaccine in a pharmacy in Paris as part of the coronavirus disease (COVID-19) vaccination campaign in France, March 19, 2021. REUTERS/Benoit Tessier/File Photo
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Former Director of Molecular Oncology at the Cleveland Clinic and former advisor to the FDA, CDC, CMS, and HHS, Roger D Klein, MD, JD, explains the second booster shot and whether you’ll really need it or not
