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. 2015 Dec 28;11:391–545. doi: 10.1111/j.1469-0691.2005.clm_1134_03.x

Table 1.

Aztreonam MIC range (mg/L)
 Ceftazidime MIC range (mg/L)
Species n Alone +4mg/L AVE 1330A Alone + 4mg/L AVE1330A 4:1 ratio with AVE1330A 4:2 ratio with AVE1330A
E. coli (ceftazidimeR) 12 4->64 ≤0.06-0.12 16->128 ≤0.03-1 0.25-16 0.25-8
Citrobacter freundii (ceftazidimeR) 6 4-64 0.12-0.25 32->128 0.25-1 0.5-4 0.5-2
Klebsiella pneumoniae (ceftazidimeR) 12 2->64 ≤0.06-0.05 12B- > 128 ≤0.03-1 1-4 1-4
Enterobacter cloacae (ceftazidime R) 13 0.5->64 ≤0.06-1 16- > 128 0.25-8 2-8 0.5-8
Morganella morganii (ceftazidimeR) 2 2/8 ≤0.06/0.25 16/64 0.12/0.25 0.5/2 0.25/0.5
E. coli (TEM 9 transformant) 1 16 0.12 >128 0.5 NT NT
E. coli (TEM 9 transformant) 1 64 ≤0.06 >128 0.5 NT NT
E. coli (TEM 9 transformant) 1 64 <0.06 >128 0.5 NT NT
E. coli (TEM 10 transformant) 1 32 0.12 >128 0.5 NT NT
E. coli (OXA 5 transformant) 1 16 0.12 64 0.5 NT NT
Klebsiella spp (SHV-ESBL producers) 24 4->64 ≤0.06-1 8->64 0.015-2 0.5-8 0.25-8