has submitted data to the Food and Drug Administration () to begin rolling out a fourth dose of its vaccine for Americans aged 65 and older.The reports that the company submitted data for the shot, which is a joint project with the German firm BioNTech, to regulators on Tuesday.A fourth shot has been hinted at for months, and Pfizer CEO Albert Bourla revealed during a television appearance last week that his company would soon submit its bid for a fourth shot.
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