Table 3.
Molecular Characterization of ESBL & AmpC β-lactamases in Enterobacteriaceae isolated (N = 88) from 27 randomly selected neonates
|
Phenotype |
No. strains |
ESBL |
AMPc |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bla-TEM | ESBL TEM | SHV | CTX-M | DHA | CMY-1 | CMY-2 | LAT | MOX | BIL | FOX | ||
|
E + A+ |
7 |
7 |
2* |
1** |
4# |
2 |
|
3 |
|
2 |
|
1 |
|
E + A- |
10 |
10 |
|
|
10 |
|
|
|
|
|
|
|
|
E-A+ |
5 |
5 |
|
|
|
3## |
2 |
|
|
|
|
|
| E-A- | 66 | PCR not performed for strains with cefotaxime, ceftazimime zone diameter ≥ 28 and ≥ 23 respectively and phenotypic test negative for ESBL and AmpC16 | ||||||||||
Note: Sequencing results *Tem 136, Tem 149; **SHV28. E = ESBL, A = AmpC, - = Negative, + = Positive.
#ESBL and AMPc genes were mainly isolated in E.coli except one Klebsiella pneumoniae having both CTX-M as well as MOX gene.
## One Citrobacter showed the presence of DHA gene.