Figure 1 Distribution and association between concentrations of antibodies to protein α and Rib in neonatal and maternal sera. (A) Anti‐α in cases with invasive group B streptococcal (GBS) infection. (B) Anti‐Rib in cases with invasive GBS infection. (C) Anti‐α in non‐infected controls. (D) Anti‐Rib in non‐infected controls. The x and y axis indicate the absorbance value at 405 nm. Pearson correlation was used.