However, the EC50 ADP/P-selectin was significantly lower in the healthy group compared to the suspected septic neonates (0.1 μM ± 0.19 vs 1.46 μM ± 0.87, P = 0.0001) (Fig. 4f) indicating that platelets from babies with a potential infection are less responsive than those from healthy babies. Here, SELP is linked to infection.