Urbonas et al. (2012) [17] analyzed 36 FN episodes, showing IL-10 ≥ 18 pg/mL achieved 73% sensitivity (95% CI: 39–94%) and 92% specificity (95% CI: 74–99%) for bacterial sepsis (AUC = 0.87), with NPV = 83% and PPV = 86%. Here, IL10 is linked to bacterial infectious disease with sepsis.