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People wearing protective masks wait in line to receive a dose of the Pfizer-BioNTech Covid-19 vaccine at a large scale vaccination site in Sacramento, California, on Thursday, Feb. 4, 2021. David Paul Morris | Bloomberg | Getty Images Scientists and health officials told Congress Friday the federal government needs to ramp up its supply of
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The second dose of Covid-19 vaccine is crucial in creating longer and complete immunity as well as preventing variants of the virus, according to Dr. Paul Offit, director of the Vaccine Education Center at Children’s Hospital of Philadelphia. “We need to know that this is a two-dose vaccine, period,” Offit told CNBC’s “The News with Shepard
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