Prognosis
Third mRNA Shot Offers Best Covid-19 Immunity, Study Says
This article is for subscribers only.
A third dose of messenger RNA Covid-19 vaccine provides a key boost to immunity against the coronavirus, regardless of the original type of immunization, researchers said.
An mRNA booster following an initial course of two shots of the same type is the most effective way to prevent non-severe Covid infections, according to an analysis of studies published Wednesday in the BMJ medical journal. Adding a third mRNA shot to other primary vaccination regimens raises protection to almost the same level, the authors from the Chinese University of Hong Kong said.