Virologist who helped develop Johnson and Johnson COVID-19 vaccine on mixing doses

The Centers for Disease Control and Prevention will review the Food and Drug Administrations's decision to approve booster shots for the Moderna and Johnson and Johnson vaccines, which would allow more than 15 million Americans to get a booster shot. Dr. Dan Barouch, a physician at Beth Israel Deaconess Medical Center in Boston and director at the Center For Virology and Vaccine Research who helped develop the Johnson & Johnson COVID-19 vaccine, joins CBSN to discuss mixing and matching doses.

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