Influenza and SARS-coronavirus activating proteases TMPRSS2 and HAT are expressed at multiple sites in human respiratory and gastrointestinal tracts. oleh Stephanie Bertram, Adeline Heurich, Hayley Lavender, Stefanie Gierer, Simon Danisch, Paula Perin, Jared M Lucas, Peter S Nelson, Stefan Pöhlmann, Elizabeth J Soilleux