Escherichia coli

Antibiogram - Escherichia coli
Number of Isolates Identified - 5521
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Antibiotic Percent Number
Susceptible Isolates Tested
Ampicillin (Am) 52 4788
Amikacin (Ak) 99 2723
Amoxicillin/clavulanate (Aug) 85 733
Ampicillin/sulbactam (A/S) 59 4603
Aztreonam (Azt) 92 2538
Cefepime (Cpm) 92 4788
Cefazolin (Cfz) 86 3716
Cefuroxime (Crm) 89 3870
Cefotaxime (Cft) 93 1805
Cefotetan (Ctt)    
Ceftazidime (Caz) 92 4603
Ceftriaxone (Cax) 91 5521
Cephalothin (Cf)    
Ciprofloxacin (Cp) 82 5521
Ertapenem (Etp) 100 4603
Gentamicin (Gm) 92 5521
Imipenem (Imp) 100 2538
Levofloxacin (Lvx) 83 2723
Meropenem (Mem) 100 3456
Nitrofurantoin (Fd) 98 5125
Piperacillin (Pi) 55 1805
Piperacillin-tazobactam (P/T) 97 5521
Tetracycline (Te) 76 1805
Tigecycline (TGC) 100 2798
Tobramycin (To) 93 5521
Trimethoprim/sulfa (T/S) 75 5521

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.