title: In vitro properties of low- and high-passaged strains of transmissible gastroenteritis coronavirus of swine.
mesh_terms: D002918:Chymotrypsin / Q000494:pharmacology; D003332:Coronaviridae / Q000254:growth & development*; D006863:Hydrogen-Ion Concentration; D013696:Temperature; D005760:Transmissible gastroenteritis virus / Q000187:drug effects / Q000254:growth & development*; D014357:Trypsin / Q000494:pharmacology; D010948:Viral Plaque Assay
chemical_list: D002918:Chymotrypsin; D014357:Trypsin