title: The effect of N-formimidoyl thienamycin, ceftazidime, cefotiam, ceftriaxone and cefotaxime on non-fermentative Gram-negative rods, Aeromonas, Plesiomonas and Enterobacter agglomerans.
abstract: Thirty-one species (185 strains) of non-fermentative gram-negative rods (excluding Pseudomonas aeruginosa) as well as 45 strains of Aeromonas spp., 15 strains of Plesiomonas shigelloides and 68 strains of Enterobacter agglomerans were tested in microdilution procedures against N-formimidoyl thienamycin, ceftazidime, cefotiam, ceftriaxone and cefotaxime. N-formimidoyl thienamycin was the most effective drug as far as the spectrum of these bacterial groups and potency is concerned; ceftazidime was the second most effective agent. Ceftriaxone and cefotaxime were similar in their activity (against a smaller spectrum), while cefotiam showed little effect. There were occasional differences between MBC and MIC values which were most notable with ceftazidime, cefotiam, ceftriaxone and cefotaxime against E. agglomerans.
mesh_terms: D000333:Aeromonas / Q000187:drug effects; D001419:Bacteria / Q000187:drug effects*; D002439:Cefotaxime / Q000031:analogs & derivatives / Q000494:pharmacology; D015310:Cefotiam; D002442:Ceftazidime; D002443:Ceftriaxone; D002511:Cephalosporins / Q000494:pharmacology*; D004754:Enterobacter / Q000187:drug effects; D015378:Imipenem; D008826:Microbial Sensitivity Tests; D011549:Pseudomonas / Q000187:drug effects; D013845:Thienamycins / Q000494:pharmacology*; D014737:Vibrionaceae / Q000187:drug effects
chemical_list: D002511:Cephalosporins; D013845:Thienamycins; D015378:Imipenem; D002443:Ceftriaxone; D015310:Cefotiam; D002442:Ceftazidime; D002439:Cefotaxime