| serodiagnosis by passive hemagglutination test and verotoxin enzyme-linked immunosorbent assay of toxin-producing escherichia coli infections in patients with hemolytic-uremic syndrome. | eight cases of hemolytic-uremic syndrome in which no pathogens were isolated were diagnosed serologically by a passive hemagglutination assay and a verotoxin (vt; shiga-like toxin) enzyme-linked immunosorbent assay (elisa). the passive hemagglutination assay employed formalinized sheep erythrocytes sensitized with soluble native antigen or heat-treated antigen (lipopolysaccharide [lps]) from escherichia coli o26, o111, o128, and o157 or flagellar antigen of nine different h serogroups of e. coli ... | 1994 | 8027349 |