TF and infection: Differential expression was tested in 3 independent clinical phenotype comparisons: TF (n = 81) against normal healthy controls (N, n = 82), TF with detectable Ct infection (TF Ct + n = 47) against normal healthy controls without detectable Ct infection (N Ct-, n = 77), and TF with detectable Ct infection (TF Ct+, n = 47) against TF cases without detectable Ct infection (TF Ct-, n = 34).