Korean J Obstet Gynecol.  2008 Sep;51(9):1025-1029.

Clinical significance of E. coli O26 isolates on urine specimen of urinary tract infection

• Yoo HJ
• Joo WD
• Kim MR
• Lee SJ
• Koo BS
• Jeong J
• Lee SH
• Kim SR

Abstract

OBJECTIVE
Escherichia coli (E. coli) O26 has been the most common type of non-O157 human isolates and it has been related with urinary tract infection and its sequelae. So we investigated the clinical significance of E. coli O26 among the cases of urinary tract infection.
METHODS
From January, 2005 to December, 2007, the 22 E. coli isolates that were related with urinary tract infection were analyzed. The isolates were identified biochemically by Vitek 1. We performed antisera test by O157, O26, O111 diagnostic antisera about the 22 E. coli isolates. We reviewed clinical history of the same patients retrospectively.
RESULTS
331 E. coli isolates in the urine specimen were isolated from January, 2005 to December, 2007. 175 E. coli isolates that were related with urinary tract infection were analyzed by O157, O26, O111 antisera test. As a result, 22 isolates (13.5%) were O26 antisera positive. There were 8, 3, and 2 cases of watery diarrhea, hemolytic uremic syndrome, thrombotic thrombocytopenic purpura repectively.
CONCLUSION
In our study, because E. coli O26 was pathogenic and developed major complications, we concluded that patients with urinary tract infection with E. coli. should examine the antisera test about E. coli O157 and O26.

Keyword

Escherichia coli; O157; O26; Anti-sera test; Urinary tract infection

MeSH Terms

Diarrhea
Escherichia coli
Hemolytic-Uremic Syndrome
Humans
Immune Sera
Purpura, Thrombotic Thrombocytopenic
Urinary Tract
Urinary Tract Infections
Immune Sera