Hemolytic uremic syndrome (HUS) can be clinically classified into two types: typical cases with a diarrheal prodrome of association with E. coli O157, and atypical cases without antecedent diarrhea.

• 摘要溶血性尿毒症候群在临床上分两型，典型的病人有腹泻的前驱症候，而且常和大肠杆菌O157有关，非典型的病人则没有腹泻的前驱症状。