CRP was significantly higher in children with IMCI pneumonia/positive urine or blood culture (mean 41.0 mg/l, 95% CI 28.3–53.6 median 16 mg/l) vs. children without any signs of bacterial infection (mean 23.8 mg/l, 95% CI 17.8–27.8, median 7 mg/l). Here, CRP is linked to susceptibility to pneumonia measurement.