Can you mix and match COVID-19 vaccine brands?
[ad_1] In the United States, three vaccines were granted emergency use authorization against the COVID-19 virus between December 2020 and February 2021: Moderna (an mRNA vaccine), Pfizer (an mRNA vaccine), and Johnson & Johnson (J&J – an adenovirus vector vaccine). However, once the Delta wave of the pandemic came to the USA and infections among…