Fig. 3. The neutralization profile of an optimal antibody against any set of mapped viruses.
a, Positions of the hypothetical highest-potency antibodies with the smallest IC50 against all H1N1 (green) or H3N2 (blue) vaccine strains from the 2004–2005 to 2018–2019 seasons, compared to the best antibody in the panel (gray, labeled below with their names). A circle corresponding to the minimal IC50 enclosing all relevant viruses is drawn around each antibody. b, Predicting the highest-potency antibody (purple) that neutralizes both the H1N1 and H3N2 strains compared to the best antibody in our panel (gray).