NPR Coronavirus Updates

Giving 2 Doses Of Different COVID-19 Vaccines Could Boost Immune Response

By Joe Palca
Published May 5, 2021 at 11:05 AM MDT
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Using two different COVID-19 vaccines is a bit like giving the immune system two pictures of the virus, maybe one face-on and one in profile.

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NPR Coronavirus Updates
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Joe Palca
Joe Palca is a science correspondent for NPR. Since joining NPR in 1992, Palca has covered a range of science topics — everything from biomedical research to astronomy. He is currently focused on the eponymous series, "Joe's Big Idea." Stories in the series explore the minds and motivations of scientists and inventors. Palca is also the founder of NPR Scicommers – A science communication collective.
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