High effectiveness of mix-and-match COVID-19 vaccines
People who had received a first dose of the Oxford-AstraZeneca COVID-19 vaccine and received an mRNA vaccine for their second …
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People who had received a first dose of the Oxford-AstraZeneca COVID-19 vaccine and received an mRNA vaccine for their second …
While immunotherapy—a form of treatment that uses the body’s immune system to recognize, attack and kill tumor cells—has given hope …