Table 3. Antibodies from KP.2 and LP.8.1 boosters in mice neutralize dominant LP.8.1 and emerging NB.1.8.1 viruses

Fold increase in neutralizing antibodies against each subvariant 2 weeks after a dose of either booster is shown.

Eight mice were vaccinated with the previous two seasons' bivalent and XBB.1.5 shots and the current KP.2 jab before receiving a booster.
Chart: Henry A. Choy, COVID and Vaccine Update Source: Derived from Moderna data presented at FDA VRBPAC, May 22, 2025. Created with Datawrapper