OVERVIEW OF GASTROINTESTINAL TRACT	60	P-pili	64
INTESTINAL MICROFLORA	60	Haemolysin	66
E. coli	61	Cytotoxic necrotising factor	66
Phylogenetic groups of E. coli	61	Siderophores	66
Diarrhoeagenic E. coli	61	Capsular polysaccharide	67
Urinary tract infection	62	SURVIVAL OF UPEC IN THE GUT	67
BACTERIAL PERSISTEnCE	62	Gut as a source of UTI	68
ExPEC strains causing septicaemia	62	UPEC and septicaemia	68
ExPEC strains causing meningitis	63	EVOLUTION OF UPEC AND CONCLUDING REMARKS	68
VIRULENCE FACTORS OF EXPEC	63	REFERENCES	68
Type 1 fimbriae	63