To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Adult Muc5bko/+ mouse with respiratory distress showing hunched posture, reduced locomotor activity and polypnoea. Muc5b-deficient mice develop early histological lung abnormalities Hélène Valque, Valérie Gouyer, Catherine Duez, Christophe Leboeuf, Philippe Marquillies, Marc Le Bert, Ségolène Plet, Bernhard Ryffel, Anne Janin, Frédéric Gottrand, and Jean-Luc Desseyn Biology Open 2019. 8:None-None; doi: 10.1242/bio.046359 Download Original Video