CRP and meningitis: All patients in the subgroup with febrile non-CNS infection had elevated CRP levels with a median of 28 mg/L (range 6–174 mg/L) compared to the subgroup with complex febrile seizures (median CRP 10 mg/l; range 0–108 mg/L) and the subgroup with meningitis (1.5 mg/L; 0–20 mg/L).