Similarly, a higher viral titre was detected in Muc1−/− mice compared to WT mice in response to intranasal inoculation of murine adenovirus type 1 (MAV-1) (McAuley et al., 2017), suggesting that the Muc1 may protect against MAV-1 respiratory infections (Nguyen et al., 2011). Here, MUC1 is linked to respiratory tract infectious disorder.