TABLE 1.

ESBL-producing E. coli isolated at various medical centers in Canada

Medical centerCityProvinceNo. of ESBL producersβ-Lactamases (no. of isolates)No. (%) of clonal complex ST131 members
William Osler Health Centre (community-based hospital)BramptonOntario20CTX-M-15 (19), CTX-M-14 (1)13 (65)
Dynacare Kasper Medical Laboratories (community-based laboratory)EdmontonAlberta12CTX-M-15 (7), SHV-2 (5)3 (25)
Mount Sinai Hospital (tertiary hospital)TorontoOntario21CTX-M-15 (19), SHV-12 (2)10 (48)
Montreal General Hospital (tertiary hospital)MontrealQuebec18CTX-M-15 (12), CTX-M-14 (1), CTX-M-3 (1), SHV-12 (2), TEM-52 (2)4 (22)
Regina Department of Laboratories (community-based laboratory)ReginaSaskatchewan23CTX-M-15 (14), CTX-M-14 (2), CTX-M-3 (1), SHV-12 (5), SHV-2 (1)12 (52)
The Ottawa Hospital (tertiary hospital)OttawaOntario18CTX-M-15 (15), SHV-2 (3)7 (39)
St. Boniface General Hospital (community-based hospital)WinnipegManitoba18CTX-M-15 (13), CTX-M-14 (2), SHV-2 (2), SHV-12 (1)11 (61)
Royal Jubilee Hospital (Tertiary hospital)VictoriaBritish Columbia19CTX-M-15 (7), CTX-M-3 (1), SHV-2 (8), SHV-12 (2), TEM-52 (1)4 (21)
Medicine Hat General Hospital (community-based hospital)Medicine HatAlberta7CTX-M-15 (6), SHV-2 (1)4 (57)
Calgary Laboratory Services (centralized laboratory)CalgaryAlberta33CTX-M-15 (18), CTX-M-14 (11), CTX-M-3 (1), CTX-M-27 (1), SHV-2 (1), SHV-12 (1)20 (61)
Total209CTX-M-15 (148), CTX-M-14 (17), CTX-M-3 (5) CTX-M-27 (1), SHV-2 (22), SHV-12 (13), TEM-52 (3)96 (46)