nytimes June 24, 2021 4:00pm Why More People Are Getting Two Different Coronavirus Vaccines #coronavirus2019ncov #vaccinationandimmunization #clinicaltrials #astrazenecaplc #modernainc #pfizerinc #oxforduniversity #novavaxinc #merkelangela #news Why More People Are Getting Two Different Coronavirus Vaccines Several countries are allowing mix-and-match inoculation, which scientists hope will have benefits, and Chancellor Angela Merkel of Germany is among those to get it.
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