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Can You Mix and Match the Pfizer and Moderna COVID-19 Vaccines?

“Extra’s” Billy Bush caught up with Dr. Armand Dorian to talk about the latest COVID-19 headlines.

Among the topics covered was whether it is OK to mix and match the Pfizer and Moderna vaccines by getting one as your first dose and the other as your second. Dr. Dorian cautioned against it, saying there isn’t enough data on what the efficacy would be after mixing them.

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