CD44 and asthma: Instead, the same knockout MIR146a/b−/− mouse asthma model infected with rhinovirus infection for the exacerbation of asthma identified a robust increase in neutrophils and an increase in Th1 and Th17 cells, FOXP3+ regulatory T cells (Tregs), and CD44+ memory T cells in comparison with knockout MIR146a/b−/− asthmatic mice and wild asthmatic mice [72].