TLR4 and susceptibility to pneumonia measurement: Saliva samples of <i>n</i> = 30 pediatric patients with CAP (19 inpatients and 11 outpatients) and 19 healthy pediatric controls were also investigated to analyze the expression of these cytokines and TLRs.<h4>Results</h4>In saliva samples taken at the time of diagnosis, threshold levels of TLR-2 were 1.16 2<sup>-ΔΔ</sup> <i><sup>Ct</sup></i> and of TLR-4 1.28 2<sup>-ΔΔ</sup> <i><sup>Ct</sup></i> differentiating patients with and without pneumonia.