Table 4.
Distribution patterns of ESBL genes in different species of enterobacteria.
| Species | Number of Isolates Tested | Distribution of ESBL Genes | ||
|---|---|---|---|---|
| bla CTX | bla SHV | bla TEM | ||
| Escherichia coli | 53 | 41 | 29 | 24 |
| Klebsiella oxytoca | 27 | 24 | 24 | 16 |
| Klebsiella pneumoniae | 23 | 15 | 17 | 15 |
| Citrobacter diversus | 22 | 15 | 11 | 8 |
| Erwinia chrysanthemi | 12 | 6 | 7 | 6 |
| Proteus vulgaris | 10 | 9 | 3 | 0 |
| Proteus mirabilis | 6 | 6 | 1 | 3 |
| Providencia stuartii | 6 | 6 | 6 | 3 |
| Enterobacter intermedius | 5 | 3 | 4 | 0 |
| Edwardsiella tarda | 2 | 2 | 2 | 0 |
| Shigella sonnei | 2 | 2 | 2 | 0 |
| Salmonella enterica | 1 | 1 | 1 | 0 |
| Total | 169 | 130 | 107 | 75 |