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Volume 18, Number 3—March 2012

Research

Chicken as Reservoir for Extraintestinal Pathogenic Escherichia coli in Humans, Canada

Catherine Racicot Bergeron1, Catharine Prussing1, Patrick Boerlin, Danielle Daignault, Lucie Dutil2, Richard J. Reid-Smith, George G. Zhanel, and Amee R. MangesComments to Author 
Author affiliations: McGill University, Montréal, Québec, Canada (C. Racicot Bergeron, C. Prussing, A.R. Manges); University of Guelph, Guelph, Ontario, Canada (P. Boerlin, R.J. Reid-Smith); Public Health Agency of Canada, Saint-Hyacinthe, Québec, Canada (D. Daignault, L. Dutil); Public Health Agency of Canada, Guelph (R.J. Reid-Smith); University of Manitoba, Winnipeg, Manitoba, Canada (G.G. Zhanel)

Main Article

Table 1

Composition of closely related Escherichia coli clonal groups from humans and retail meat or abattoir source isolates, Canada, 2005–2007*

Source No. (%) isolates
Year
Geographic area
Total
2005 2006 2007 2008 QC ON BC/AB SK/MB Maritimes
UTI in humans
All 102 (21) 174 (37) 137 (29) 62 (13) 379 (80) 37 (8) 23 (5) 24 (5) 12 (3) 475 (100)
Manges collection† 102 (21) 174 (37) 75 (16) 0 351 (74) 0 0 0 0 351 (74)
Zhanel collection‡ 0 0 62 (13) 62 (13) 28 (6) 37 (8) 23 (5) 24 (5) 12 (3) 124 (26)
Retail meat
All 275 (37) 243 (33) 219 (30) 0 521 (71) 202 (27) 4 (1) 10 (1) 0 737 (100)
Beef 84 (11) 72 (10) 86 (12) 0 210 (28) 32 (4) 0 0 0 242 (33)
Chicken 107 (15) 101 (14) 45 (6) 0 141 (19) 99 (13) 3 (0.4) 10 (1) 0 253 (34)
Pork 84 (11) 70 (9) 88 (12) 0 170 (23) 71 (10) 1 (0.1) 0 0 242 (33)
Abattoir
All 133 (38) 101 (29) 115 (33) 0 107 (31) 146 (42) 48 (14) 30 (9) 4 (1) 349 (100)
Beef 18 (5) 22 (6) 20 (6) 0 11 (3) 23 (7) 17 (5) 8 (2) 1 (0.3) 60 (17)
Chicken§ 89 (26) 60 (17) 80 (23) 0 75 (21) 104 (30) 27 (8) 10 (3) 2 (1) 229 (66)
Pig¶ 26 (7) 19 (5) 15 (4) 0 21 (6) 19 (5) 4 (1) 12 (3) 1 (0.3) 60 (17)
Total 510 (33) 518 (33) 471 (30) 62 (4) 1,007 (65) 385 (25) 75 (5) 64 (4) 16 (1) 1,561 (100)

*QC, Québec; ON, Ontario; BC, British Columbia; AB, Alberta; SK, Saskatchewan; MB, Manitoba; Maritimes, New Brunswick/Nova Scotia/Prince Edward Island; UTI, urinary tract infection.
†351 E. coli isolates recovered from humans with UTIs in Montréal during June 2005–May 2007.
‡124 E. coli isolates from humans with community- or hospital-acquired UTIs from sources throughout Canada during 2007–2008.
§The geographic area was unknown for 11 isolates from chicken.
¶The geographic area was unknown for 3 isolates from pigs.

Main Article

1These authors contributed equally to this article.

2Deceased.

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