In our cohort of children with asthma, but not in control children, we found a PD‐L1 induction in children with higher bronchoconstriction (Figure 1D) and an inverse correlation between PD‐L1 and FEV1% (Figure 1E), indicating that worse asthma is associated with induction of PD‐L1 mRNA in blood cells of children with asthma. This evidence concerns the gene CD274 and asthma.