Table 7 Analysis for physical association between bla genes and various genetic elements
Number (%) of β-lactamase physically linked to various genetic elements | |||||
|---|---|---|---|---|---|
β-lactamase genes | Number of isolates tested | IS26 | ISEcp1 | ISCR1 | Integrons |
bla SHV-1 | 60 | 23 (38) | 12 (20) | 10 (17) | 9 (15) |
bla OXA-1 | 43 | 12 (28) | 21 (49) | 32 (74) | 36 (84) |
bla OXA-2 | 17 | 0 | 2 (12) | 5 (29) | 3 (18) |
bla SHV-5 | 18 | 10 (55) | 5 (28) | 3 (17) | 1 (6) |
bla SHV-12 | 19 | 7 (37) | 4 (21) | 3 (16) | 2 (11) |
bla CTX-M-1 | 9 | 1 (11) | 0 | 2 (22) | 1 (11) |
bla CTX-M-3 | 15 | 6 (40) | 0 | 0 | 0 |
bla CTX-M-8 | 6 | 2 (33) | 1 (17) | 0 | 0 |
bla CTX-M-9 | 3 | 0 | 1 (33) | 3 (100) | 0 |
bla CTX-M-14 | 25 | 10 (40) | 3 (12) | 5 (20) | 3 (12) |
bla CTX-M-15 | 32 | 4 (13) | 30 (94) | 0 | 0 |
bla TEM-103 | 18 | 2 (11) | 0 | 1 (6) | 1 (6) |
bla TEM-109 | 9 | 0 | 0 | 0 | 0 |
bla TEM-50 | 10 | 2 (20) | 1 (10) | 6 (60) | 3 (30) |
bla TEM-52 | 37 | 29 (78) | 1 (3) | 3 (8) | 2 (5) |
bla TEM-78 | 9 | 2 (22) | 0 | 3 (33) | 2 (22) |
bla TEM-125 | 36 | 3 (8) | 0 | 3 (8) | 2 (6) |
bla TEM-152 | 14 | 1 (7) | 0 | 4 (29) | 2 (14) |
bla TEM-158 | 10 | 1 (10) | 0 | 0 | 0 |
bla CMY-2 | 48 | 12 (25) | 42 (88) | 12 (25) | 3 (6) |