Antimicrobial activities of Ceftaroline and ME1036 tested against clinical strains of community-acquired methicillin-resistant Staphylococcus aureus.
Two investigational anti-methicillin-resistant Staphylococcus aureus (anti-MRSA) beta-lactams, ceftaroline (a cephalosporin) and ME1036 (a carbapenem), were subjected to susceptibility testing by reference broth microdilution methods using 152 strains of community-acquired MRSA from the United States (47 medical centers). Ceftaroline and ME1036 were 64- and >128-fold more potent than ceftriaxone, respectively. All isolates had the Panton-Valentine leukocidin genes and staphylococcal cassette chromosome mec type IV, while 67.8% of isolates displayed pulsed-field gel electrophoresis clonal type USA300-0114.
Sader
Helio S
HS
JMI Laboratories, 345 Beaver Kreek Centre, Suite A, North Liberty, IA 52317, USA. helio-sader@jmilabs.com
Fritsche
Thomas R
TR
Jones
Ronald N
RN
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D015780:Carbapenems / Q000494:pharmacology*; D002511:Cephalosporins / Q000494:pharmacology*; D017714:Community-Acquired Infections / Q000382:microbiology*; D006801:Humans; D016106:Methicillin Resistance; D008826:Microbial Sensitivity Tests; D013203:Staphylococcal Infections / Q000382:microbiology; D013211:Staphylococcus aureus / Q000145:classification / Q000187:drug effects* / Q000235:genetics; D014481:United States; D047090:beta-Lactams / Q000494:pharmacology; D000097583:Ceftaroline
D000900:Anti-Bacterial Agents; D015780:Carbapenems; D002511:Cephalosporins; D047090:beta-Lactams; D000097583:Ceftaroline; C490527:ME1036