Table 2: Characteristics of the nine isolates harboring AmpC gene.

Isolate No. Hospital Ward * Specimen± age isolate MDR ESBL E-test ESBL/AmpC test†
1 TMC GSICU ETT 30 years K. pneumoniae + + - -
2 TPH SCBU Tip 45 days K. pneumoniae + + + -
3 TPH ICU urine 5 years K. pneumoniae - + - +
4 TPH SCBU blood 6 days K. pneumoniae - + + +
5 TPH SCBU umbilical 5 days K. pneumoniae - + + -
6 TPH ICU ETT 14 months K. pneumoniae - + - -
7 TPH NBICU urine 10 years E. coli - + + -
8 TPH SCBU blood 3 years E. coli - + - +
9 TPH SCBU ETT 1 day E. coli - + - -

* GSICU = general systems intensive care unit; SCBU = special care baby unit; ICU = intensive care unit; NBICU = Newborn intensive care unit ± ETT = Endotracheal tube; † Combination Disc test = discs containing cefotaxime alone and in combination with clavulanic acid, cloxacillin and both of these inhibitors are applied