O and H serotypes of Escherichia coli isolated from urinary tract infections.

Escherichia coli strains isolated from Christchurch women with symptomatic and asymptomatic bacteriuria were serotyped for both their "O" and "H" antigens with a complete set of antisera. Although the "O" types found in this survey conformed in general with the prevalence of "O" types observed in other parts of the world some differences were also noted. The serotypes associated with symptomatic infection showed differences with those from asymptomatic patients.