Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

Volume 11, Number 1—January 2005

Research

Genetic Background of Escherichia coli and Extended-spectrum β-Lactamase Type

Author affiliations: *Hôpital Louis Mourier, AP-HP, Colombes, France; †INSERM E0339, Paris, France; ‡Hôpital Nord, Amiens, France; §Hôpital Tenon, Paris, France; ¶Hôpital Trousseau, Paris, France; #Hôpital Morvan, Brest, France

Main Article

Table 3

Distribution of extended-spectrum β-lactamase types among Escherichia coli strains isolated from infection or colonization, according to phylogenetic group

Phylogenetic group No. strains in the group (%) No. (%) of isolates producing
TEM SHV CTX-M
Infection
A0 5 (5.8) 2 (6.4) 1 (5.8) 2 (5.2)
A1 18 (20.9) 11 (35) 0 7 (18.4)
B1 9 (10.4) 2 (6.4) 3 (17.6) 4 (10.5)
B22 7 (8.1) 5 (16) 1 (5.8) 1 (2.6)
B23 28 (32.5) 8 (25.8) 10 (58.8) 10 (26.3)
D1 11 (12.7) 3 (9.6) 2 (11.7) 6 (15.7)
D2 8 (9.3) 0 0 8 (21)
All groups 86 (100) 31 (100) 17 (100) 38 (100)
Colonization
A0 7 (16.2) 5 (20.8) 0 2 (14.2)
A1 6 (13.9) 2 (8.3) 0 4 (28)
B1 4 (9.3) 3 (12.5) 0 1 (7.1)
B22 4 (9.3) 2 (8.3) 1 (20) 1 (7.1)
B23 8 (18.6) 5 (20.8) 3 (60) 0
D1 11(25.5) 6 (25) 1 (20) 4 (28.4)
D2 3 (6.9) 1 (4.1) 0 2 (14.1)
All groups 43 (100) 24 (100) 5 (100) 14 (100)
All strains
A0 12 (9.3) 7 (12.7) 1 (4.5) 4 (7.6)
A1 24 (18.6) 13 (23.6) 0 11 (21.1)
B1 13 (10) 5 (9) 3 (13.6) 5 (9.6)
B22 11 (8.5) 7 (12.7) 2 (9) 2 (3.8)
B23 36 (27.9) 13 (23.6) 13 (59) 10 (19.2)
D1 22 (17) 9 (16.3) 3 (13.6) 10 (19.2)
D2 11 (8.5) 1 (1.8) 0 10 (19.2)
All groups 129 (100) 55 (100) 22 (100) 52 (100)

Main Article

TOP