TABLE 2.
Prevalence of class 1 and class 2 integrons among E. coli isolates from patients at the Hospital Universitario Ramón y Cajal and from healthy volunteers
| E. coli isolate group (no. of PFGE types) | Class 1
|
Class 2
|
Classes 1 + 2 | Strains without integrons | Total % of integrons | Phylogenetic group
|
|||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| int1+ | Gene cassettes as part of class 1 integrons | int2+ | Gene cassettes as part of class 2 integrons | A | B1 | B2 | D | ||||
| C-ESBL (52) | 67a (35/52)b | 62 (32/52) | 13 (7/52) | 13 (7/52) | 8 (4/52) | 27 (14/52) | 73 (38/52) | 21 (11/52) | 10 (5/52) | 19 (10/52) | 50 (26/52) |
| C-nESBL (43) | 40 (17/43) | 33 (14/43) | 12 (5/43) | 12 (5/43) | 2 (1/43) | 51 (22/43) | 49 (21/43) | 28 (12/43) | 9 (4/43) | 44 (19/43) | 19 (8/43) |
| V-nESBL (38) | 26 (10/38) | 21 (8/38) | 18 (7/38) | 16 (6/38) | 8 (3/38) | 63 (24/38) | 37 (14/38) | 50 (19/38) | 18 (7/38) | 11 (4/38) | 21 (8/38) |
| Total (133) | 47 (62/133) | 41 (54/133) | 14 (19/133) | 14 (18/133) | 6 (8/133) | 45 (60/133) | 55 (73/133) | 32 (42/133) | 12 (16/133) | 25 (33/133) | 32 (42/133) |
a
Percentage of isolates.
b
Number of isolates/total.