title: In-vitro activity of a new penem FCE 22101.
abstract: The in-vitro activity of a new penem FCE 22101 was evaluated in comparison with other antimicrobial agents against 966 aerobic and anaerobic Gram-negative and Gram-positive bacteria. FCE 22101 inhibited 90% of Enterobacteriaceae, Haemophilus influenzae, H. parainfluenzae, H. ducreyi, Neisseria gonorrhoeae, Branhamella catarrhalis, Staphylococcus aureus, Staph. epidermidis and group B streptococcus at concentrations of 0.12-4.0 mg/l. Pseudomonas aeruginosa was resistant with MIC90 of greater than 32 mg/l. Streptococcus faecalis displayed MIC90 of 16 mg/l. Bacteroides fragilis, Clostridium spp., Peptococcus spp. and Peptostreptococcus spp. were inhibited at concentrations of 0.25-2.0 mg/l. beta-Lactamase-producing or methicillin resistant bacteria did not have significantly elevated MICs. FCE 22101 was generally less active than imipenem but more active than other beta-lactam antibiotics examined.
authors: Department of Clinical Microbiology, Health Sciences Centre, Winnipeg, Manitoba, Canada.
authors: D J
authors: DJ
authors: Hoban
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects* / Q000201:enzymology; D001424:Bacterial Infections / Q000382:microbiology*; D015780:Carbapenems; D006090:Gram-Negative Bacteria / Q000187:drug effects / Q000201:enzymology; D006094:Gram-Positive Bacteria / Q000187:drug effects / Q000201:enzymology; D008826:Microbial Sensitivity Tests; D001618:beta-Lactamases / Q000378:metabolism; D047090:beta-Lactams
chemical_list: D000900:Anti-Bacterial Agents; D015780:Carbapenems; D047090:beta-Lactams; C040033:ritipenem; D001618:beta-Lactamases