General Medicine General d7f39d21 E. coli causes disease by a variety of different methods. Which one of the following E. coli types is characterized by the presence of LT (heat-labile) and ST (heat-stable) proteins? A Enteroinvasive (EIEC) B Enterotoxigenic (ETEC) C Enterohemorrhagic (EHEC) D Enteropathogenic (EPEC)