A similar inverse association between cord blood T cell IL‐10 and IL‐5 responses and risk for respiratory infections has been described previously in a longitudinal birth cohort following children for 5 years: in this cohort, children with a low IL‐10/high IL‐5 T cell response phenotype at birth were at a significantly higher risk of all grades of acute respiratory infection relative to children with the more resistant high IL‐10/low IL‐5 phenotype 39. This evidence concerns the gene IL5 and respiratory tract infectious disorder.