A mix-and-match vaccine study suggests one dose of AstraZeneca followed by one dose of Pfizer is effective

A mix-and-match vaccine study suggests one dose of AstraZeneca followed by one dose of Pfizer is effective

Business Insider

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Antibody levels were 40 times higher for people who got Pfizer's vaccine two weeks after AstraZeneca's, compared with people who only had one shot.

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