Efficacy of mRNA-1273 and Novavax Ancestral or BA.1 Spike Booster Vaccines against SARS-CoV-2 BA.5 Infection in Non-Human Primates

Investigators compared the efficacy of three booster vaccines against Omicron BA.5 challenge in rhesus macaques: mRNA-1273, the Novavax ancestral spike protein vaccine, or Omicron BA.1 spike protein version.