Escherichia coli

Antibiogram - Escherichia coli
Number of Isolates Identified - 6942
Back to List of Organisms
Antibiotic	Percent	Number
	Susceptible	Isolates Tested
Amikacin (Ak)	99	750
Amoxicillin/clavulanate (Aug)	88	2966
Ampicillin (Am)	59	6942
Ampicillin/sulbactam (A/S)	67	6942
Aztreonam (Azt)	91	1014
Cefazolin (Cfz)	86	4990
Cefepime (Cpm)	91	4764
Cefotaxime (Cft)
Cefotetan (Ctt)	100	1014
Cefoxitin (Cfx)	97	264
Ceftazidime (Caz)	90	3919
Ceftriaxone (Cax)	90	5880
Ciprofloxacin (Cp)	83	5144
Ertapenem (Etp)	99	3874
Gentamicin (Gm)	91	6942
Imipenem (Imp)	99	1380
Levofloxacin (Lvx)	84	2702
Meropenem (Mem)	99	4764
Minocycline (MI)	89	750
Nitrofurantoin (Fd)	98	5488
Piperacillin-tazobactam (P/T)	98	6942
Tetracycline (Te)	73	1014
Tigecycline (TGC)	100	373
Tobramycin (To)	91	6942
Trimethoprim/sulfa (T/S)	76	6942

To read this antibiogram:

1. Each antibiotic is presented in three columns. The first column lists the name of the antibiotic. The middle column represents susceptibility in percent to that antibiotic. The 3rd column represents the number of isolates tested for that specific antibiotic.
2. Susceptibility greater than or equal to 90% is highlighted in GREEN, 60%-89% in YELLOW, and less than 60% in RED. Susceptibility not reaching 100% is also labeled as 99%.
3. Nitrofurantoin is tested for urine specimens only.
4. The susceptibility result for Streptococcus pneumoniae is a combination of screening test and E-test results.
5. CLSI performance standards for antimicrobial susceptibility testing were applied. CLSI stands for Clinical and Laboratory Standards Institute (Formerly NCCLS, The National Committee for Clinical Laboratory Standards).
6. Empty cells indicate that susceptibility testing for that specific organism and antibiotic is not recommended or complete testing data was not available or the number is too small for a valid reporting.