Extended Data Fig. 5: Illustration of poor and strongly neutralizing sera in MNA.

a, Illustration of a poorly neutralizing/negative (green) serum where the neutralization fails to achieve 50% of the virus-only control (VOC) at even the lowest dilution tested; b, Illustration of a strongly neutralizing/highly positive (green) serum where the neutralization fails to cross 50% of the virus-only control (VOC) at the highest dilution tested.