title: Food reservoir for Escherichia coli causing urinary tract infections.
abstract: Closely related strains of Escherichia coli have been shown to cause extraintestinal infections in unrelated persons. This study tests whether a food reservoir may exist for these E. coli. Isolates from 3 sources over the same time period (2005-2007) and geographic area were compared. The sources comprised prospectively collected E. coli isolates from women with urinary tract infection (UTI) (n = 353); retail meat (n = 417); and restaurant/ready-to-eat foods (n = 74). E. coli were evaluated for antimicrobial drug susceptibility and O:H serotype and compared by using 4 different genotyping methods. We identified 17 clonal groups that contained E. coli isolates (n = 72) from >1 source. E. coli from retail chicken (O25:H4-ST131 and O114:H4-ST117) and honeydew melon (O2:H7-ST95) were indistinguishable from or closely related to E. coli from human UTIs. This study provides strong support for the role of food reservoirs or foodborne transmission in the dissemination of E. coli causing common community-acquired UTIs.
authors.affiliation: McGill University, Montreal, Quebec H3A 1A2, Canada.
authors.forename: Caroline
authors.initials: C
authors.lastname: Vincent
authors.forename: Patrick
authors.initials: P
authors.lastname: Boerlin
authors.forename: Danielle
authors.initials: D
authors.lastname: Daignault
authors.forename: Charles M
authors.initials: CM
authors.lastname: Dozois
authors.forename: Lucie
authors.initials: L
authors.lastname: Dutil
authors.forename: Chrissi
authors.initials: C
authors.lastname: Galanakis
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Reid-Smith
authors.forename: Pierre Paul
authors.initials: PP
authors.lastname: Tellier
authors.forename: Patricia A
authors.initials: PA
authors.lastname: Tellis
authors.forename: Kim
authors.initials: K
authors.lastname: Ziebell
authors.forename: Amee R
authors.initials: AR
authors.lastname: Manges
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D002645:Chickens / Q000382:microbiology; D019662:Cucurbitaceae / Q000382:microbiology; D016172:DNA Fingerprinting; D004197:Disease Reservoirs; D004926:Escherichia coli / Q000145:classification; D004927:Escherichia coli Infections / Q000145:classification / Q000453:epidemiology / Q000209:etiology*; D005260:Female; D005516:Food Microbiology; D005838:Genotype; D006801:Humans; D008460:Meat / Q000382:microbiology; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D009864:Ontario / Q000453:epidemiology; D011792:Quebec / Q000453:epidemiology; D012147:Restaurants; D012703:Serotyping; D014552:Urinary Tract Infections / Q000209:etiology* / Q000382:microbiology; D056689:Uropathogenic Escherichia coli / Q000235:genetics / Q000302:isolation & purification; D055815:Young Adult