Table 4 Distribution of resistance genes in the 94 ESBL-producer isolates
Isolates (n) | Genes involved | ||
|---|---|---|---|
β-lactamase genes | PMQR | 16S rRNA methylase | |
E. coli (60) | CTX-M-15 (1) | qnrS (2) | armA (2) |
CTX-M-27 (3) | oqxAB (1) | rmtC (2) | |
CTX-M-15/TEM-1 (14) | qepA (1) | armA/rmtC (1) | |
CTX-M-9/TEM-1 (2) | aac (6′)-Ib-cr (24) | ||
CTX-M-15/OXA-1 (17) | qnrS/aac (6′)-Ib-cr (4) | ||
CTX-M-15/CTX-M-27/TEM-1 (2) | qnrS/oqxAB (1) | ||
CTX-M-15/TEM-1/OXA-1 (19) | qnrB/oqxAB (1) | ||
TEM-1 (1) | qnrB/oqxAB/aac (6′)-Ib-cr (2) | ||
OXA-1 (1) | oqxAB/aac (6′)-Ib-cr (1) | ||
oqxAB/qnrS (1) | |||
qepA/aac (6′)-Ib-cr (1) | |||
K. pneumonia (20) | CTX-M-15 (4) | oqxAB (1) | rmtB (1) |
CTX-M-14 (1) | qnrS/oqxAB/ (3) | rmtC (1) | |
CTX-M-15/TEM-1 (5) | qnrS/oqxAB/aac (6′)-Ib-cr (1) | ||
CTX-M-15/OXA-1 (2) | qnrB/aac (6′)-Ib-cr (1) | ||
CTX-M-15/TEM-1/OXA-1 (8) | qnrB/oqxAB (1) | ||
qnrB/oqxAB/aac (6′)-Ib-cr (5) | |||
oqxAB/aac (6′)-Ib-cr (“) | |||
Other species (14) | CTX-M-15/TEM-1 (6) | aac (6′)-Ib-cr (2) | rmtB (1) |
CTX-M-15/OXA-1 (3) | qnrB/aac (6′)-Ib-cr (1) | armA/rmtC (1) | |
CTX-M-15/TEM-1/OXA-1 (3) | qnrD/aac (6′)-Ib-cr (2) | ||
OXA-1 (2) | |||