Should Future COVID Boosters Include the Ancestral Strain?

by iMARS Staff 08. February 2023 Health 0

(MedPage Today) — The current COVID-19 mRNA vaccine boosters are bivalent, meaning they contain equal amounts of spike protein mRNA for the original Wuhan virus sequence and for the BA.4/5 Omicron variants that emerged in mid-2022. How well does…