Johnson & Johnson is working on a single dose COVID-19 vaccine shot.While Health Officer Dr. Raul Pino for the Department of Health in Orange County says he has not received any detailed information on the vaccine, he added this: “A one-dosage vaccine depending on what the conditions for refrigeration and other elements that are to be considered could be is a game-changer.”Reportedly, the Johnson & Johnson investigational vaccine can be stored for at least three months at…

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