They would all have been detected using an ImmunoXpert ≥ 35, a Labscore threshold of 1 or 3, or PCT ≥ 0.5 ng/mL, whereas WBC ≥ 15 G/L or CRP ≥ 40 mg/L would have detected respectively only two and three of these infections (S4 Table). The gene discussed is CRP; the disease is infection.