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. 2005 Aug;43(8):4168–4171. doi: 10.1128/JCM.43.8.4168-4171.2005

TABLE 1.

Results of tests with strains producing plasmid-mediated AmpC β-lactamases

Strain Organism Resistance mechanismb Resulta for:
CL1 CL2 FL1 FL2 CR1 CR2 FR1 FR2 CS1 CS2 FS1 FS2
01HNH5 K. pneumoniae ACT-like P P P P P P P P P P N N
01WHS18 K. pneumoniae FOX-/SHV ESBL P N P P P N P P P P P P
01WHS51 K. pneumoniae FOX-like P P P P P N P P P P P P
01WHS4 K. pneumoniae FOX-like/SHV ESBL P P N N N P N N P P N N
01BH5 K. pneumoniae FOX-like P N N N P N N N P P P P
01BH49 K. pneumoniae FOX-5 P N N N P N N N P P P P
01IFH13 K. pneumoniae FOX-5 N N N N N N N N P P N N
01IFH82 K. pneumoniae FOX-like P N N N N N N N P P P N
01IFH95 K. pneumoniae FOX-like P N P N P N P N P P P P
01JMH89 K. pneumoniae FOX-5/SHV ESBL N N N N N N N N P P P P
01JMH44 K. pneumoniae FOX-like/SHV ESBL N P N N N N N N P P P N
01JMH71 K. pneumoniae FOX-5 P N N N P N N N P P P P
01JMH164 K. pneumoniae FOX-5/SHV ESBL N N N N N N N N P P N N
01VCH55 K. pneumoniae FOX-like/SHV ESBL N N N N N N N N N N N N
01AML11 K. pneumoniae FOX-5/SHV,TEM ESBL P P N P P P N P P P N N
01CMH13 K. pneumoniae FOX-5 P N N N P N N N P P N P
01CLH42 K. pneumoniae FOX-like P P N N P P N N P P P P
01DVA50 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N N
01DVA56 K. pneumoniae FOX-like N N N N N N N N P P N P
01DVA74 K. pneumoniae FOX-like/SHV ESBL P P N N P N N N P P P P
01DVA78 K. pneumoniae FOX-like/SHV ESBL P P N N P N N N P P N N
01DVA86 K. pneumoniae FOX-like/SHV ESBL P N N N P N N N N N N N
01DVA21 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N N
01DVA28 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N N
01DVA41 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N N
01DVA49 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N N
01VUMM451 K. pneumoniae DHA-like/SHV ESBL P P N N P P P P P P P P
01CSHS37 K. pneumoniae FOX-like/SHV ESBL P P N N P P N N P P N P
01VCH72 K. oxytoca DHA-like/SHV ESBL N N P N N N P P N N P P
01LSAI127 K. oxytoca FOX-like P P P P P P P P P P P P
01LSAI141 K. oxytoca FOX-like P P P N P P P P P P P P
01LSAI154 K. oxytoca FOX-like P P P P P P P P P P P P
01CPMC7 K. oxytoca FOX-like N N N N P N P N P P P P
a

CL1, cefotetan plus LN-2-128, day 1; CL2, cefotetan plus LN-2-128, day 2; FL1, cefoxitin plus LN-2-128, day 1; FL2, cefoxitin plus LN-2-128, day 2; CR1, cefotetan plus 48-1220, day 1; CR2, cefotetan plus 48-1220, day 2; FR1, cefoxitin plus 48-1220, day 1; FR2, cefoxitin plus 48-1220, day 2; CS1, cefotetan plus Syn 2190, day 1; CS2, cefotetan plus Syn 2190, day 2; FS1, cefoxitin plus Syn 2190, day 1; FS2, cefoxitin plus Syn 2190, day 2; P, positive; N, negative.

b

Resistance mechanism of interest; other β-lactamases may also be present in the isolate.