CLDN12 and asthma: Bronchial brushings from patients with asthma experimentally infected in vivo with RV‐A1631 (Figure 7E) showed a decrease in a group of tight junction‐related gene such as CLDN15, TJAP1, AKT2, SRC, CGN, EXOC3, LLG2, CLDN22, compared to similarly infected healthy controls, while CLDN12 and MYL12B genes were increased (Figure 7F).