107 Pfizer said Friday it was changing plans and testing -three doses of its covid19 vaccine in babies and preschoolers -after the usual two shots didn't appear strong enough. ,, babies and preschoolers ,, (www.nbcnewyork.com) posted 3 years ago by xleb2 3 years ago by xleb2 +108 / -1 44 comments share 44 comments share save hide report block hide replies
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