Infections with enterotoxigenic Escherichia coli 5 Infections with rotavirus 12 Dual infections with E. coli and rotavirus 17 DEVELOPMENT OF RESISTANCE WITH HOST AGE TO ADHESION OF K99* ESCHERICHIA COLI TO ISOLATED INTESTINAL EPITHELIAL CELLS 20 ABSTRACT 21 INTRODUCTION 22 MATERIALS AND METHODS 23 Epithelial cell isolation 23 coli strains 23 Adhesion assay 25 RESULTS 25 DISCUSSION 33 LITERATURE CITED 35 CAPSULE REDUCES ADHERENCE OF ENTEROTOXIGENIC ESCHERICHIA COLI TO ISOLATED INTESTINAL EPITHELIAL CELLS OF PIGS 37