CAMBRIDGE – Moderna, Inc. has announced new clinical data on its bivalent (Omicron) COVID booster candidate, mRNA-1273.214. One month after administration in previously vaccinated and boosted participants, a 50 µg booster dose of mRNA-1273.214 elicited potent neutralizing antibody responses against the Omicron subvariants BA.4 and BA.5 in all participants regardless of prior infection. Based on this and prior data, the …