Mixing Pfizer and AstraZeneca vaccines provides strong protection, according to a preliminary study.

Health
By BY CARL ZIMMER from NYT Health https://ift.tt/3dmaB54
via IFTTT Vaccination and Immunization, Coronavirus (2019-nCoV), Clinical Trials, Research Administering a first dose of one vaccine and a second dose of the other, in either order, is likely to provide potent protection, the researchers said.

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