Research Article
Activity of Ceftaroline against Aerobic Gram-Positive and Gram-Negative Pathogens: Effect of Test Method Variability
Table 1
List of organisms used in the study.
| Organism | RMA number | Specimen source | Date isolated | Comments |
| E. coli | | ATCC 25922 | | | 19089 | Blood | 3/7/2007 | Ampicillin = 4 μg/mL | 19090 | Primary infection site | 3/28/2007 | Ampicillin ≥32 μg/mL |
| K. pneumoniae | 19091 | Primary infection site | 3/1/2007 | Ampicillin = 32 μg/mL | 19092 | Blood | 6/6/2007 | Ampicillin = 16 μg/mL | 19093 | Blood | 6/29/2007 | Ampicillin = 32 μg/mL |
| H. influenzae | | ATCC 49247 | | | 16081 | Respiratory | 12/31/2003 | β-Lactamase-negative | 18520 | Respiratory-sinus | 12/23/2005 | β-Lactamase-positive |
| M. catarrhalis | 11940 | Respiratory-sinus | 6/14/2000 | | 14032 | Respiratory-sinus | 5/22/2002 | | 18861 | Respiratory-sputum | 1/31/2007 | |
| S. aureus | | ATCC 29213 | | | 18488 | Chest infection site | 2/11/2005 | Methicillin-S | 18401 | Blood | 8/16/2005 | Methicillin-S | 18483 | Head abscess | 10/15/2005 | Methicillin-R | 18504 | Primary infection site | 11/18/2005 | Methicillin-R | 18526 | Blood | 10/24/2005 | Methicillin-R |
| E. faecalis | | ATCC 29212 | | | 18284 | Foot infection site | 3/24/2005 | | 18877 | Blood | 4/10/2007 | |
| S. pyogenes | 17018 | Diabetic foot infection site | 1/22/2003 | | 17019 | Diabetic foot infection site | 10/22/2002 | | 19047 | Abdominal lesion | 10/26/2007 | Clindamycin-R |
| S. pneumoniae | | ATCC 49619 | | | 19094 | Ear | 10/29/2007 | Penicillin-S | 19095 | Eye | 1/9/2007 | Penicillin-S | 13345 | Nasopharynx | 11/14/2001 | Penicillin = 8 μg/mL | 13385 | Nasopharynx | 12/4/2001 | Penicillin = 8 μg/mL | 18876 | Eye | 1/2/2007 | Penicillin = 8 μg/mL |
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RMA: R.M. Alden (culture collection). ATCC: American Type Culture Collection.
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