Volume 16, Number 1—January 2010
Research
Ceftiofur Resistance in Salmonella enterica Serovar Heidelberg from Chicken Meat and Humans, Canada
Table
Prevalence of ceftiofur resistance among human and retail chicken Salmonella serovar Heidelberg isolates and retail chicken Escherichia coli isolates from Canadian provinces surveyed during 2003–2008
| Isolate/province | Prevalence of ceftiofur resistance, % (no. resistant isolates/total no. isolates tested) |
|||||
|---|---|---|---|---|---|---|
| 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Human clinical Salmonella Heidelberg | ||||||
| Québec | 31 (52/167) | 36 (42/116) | 35 (37/106) | 8 (8/96) | 6 (4/63) | 12 (8/65) |
| Ontario | 18 (31/172) | 38 (70/185) | 30 (42/140) | 10 (12/122) | 22 (21/94) | 32 (7/22) |
| Saskatchewan | 0 (0/15) | 7 (1/14) | 0 (0/11) | 0 (0/7) | ||
| British Columbia |
23 (3/13) |
19 (3/16) |
||||
| Chicken retail Salmonella Heidelberg | ||||||
| Québec | 65 (13/20) | 62 (18/29) | 33 (4/12) | 7 (1/14) | 19 (6/32) | 18 (7/38) |
| Ontario | 16 (3/19) | 58 (19/33) | 27 (3/11) | 21 (3/14) | 21 (9/42) | 14 (3/21) |
| Saskatchewan | 0 (0/5) | 13 (1/8) | 0 (0/9) | 8 (1/12) | ||
| British Columbia |
50 (2/4) |
67 (2/3) |
||||
| Chicken retail E. coli | ||||||
| Québec | 32 (36/111) | 34 (54/158) | 25 (35/142) | 6 (8/135) | 13 (17/128) | 18 (24/131) |
| Ontario | 18 (24/136) | 21 (32/150) | 17 (25/145) | 22 (34/152) | 22 (35/157) | 24 (36/150) |
| Saskatchewan | 4 (3/82) | 6 (5/85) | 13 (10/75) | 20 (18/92) | ||
| British Columbia | 29 (12/42) | 49 (34/70) | ||||


