Defensive Properties of Mucin Glycoproteins during Respiratory Infections-Relevance for SARS-CoV-2 Chatterjee M, van Putten JPM, Strijbis K. mBio. 2020 Nov 12;11(6):e02374-20. doi: 10.1128/mBio.02374-20. Mucus plays a pivotal role in protecting the respiratory tract against microbial infections. It acts as a primary contact site to entrap microbes and facilitates their removal from the respiratory tract via the