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David Kessler

COVID-19: Pfizer CEO Reveals When Vaccine Booster Shot Likely Will Be Needed After Second Dose COVID-19: Pfizer CEO Reveals When Vaccine Booster Shot Likely Will Be Needed After Second Dose
Covid-19: Pfizer CEO Reveals When Vaccine Booster Shot Likely Will Be Needed After Second Dose Pfizer CEO Albert Bourla is cautioning that patients will…