Escherichia coli

Antibiogram - Escherichia coli
Number of Isolates Identified - 9962
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Antibiotic Percent Number
Susceptible Isolates Tested
Ampicillin (Am) 57 9306
Amikacin (Ak) 99 2577
Amoxicillin/clavulanate (Aug) 83 656
Ampicillin/sulbactam (A/S) 60 2404
Aztreonam (Azt) 92 2215
Cefepime (Cpm) 93 9306
Cefazolin (Cfz) 86 1581
Cefuroxime (Crm) 91 1748
Cefotaxime (Cft) 92 8381
Cefotetan (Ctt)    
Ceftazidime (Caz) 93 9037
Ceftriaxone (Cax) 93 9962
Cephalothin (Cf) 53 6633
Ciprofloxacin (Cp) 83 9962
Ertapenem (Etp) 99 9037
Gentamicin (Gm) 92 9962
Imipenem (Imp) 100 1748
Levofloxacin (Lvx) 84 9306
Meropenem (Mem) 100 3329
Nitrofurantoin (Fd) 98 9659
Piperacillin (Pi) 57 1748
Piperacillin-tazobactam (P/T) 97 9955
Tetracycline (Te) 77 1541
Tigecycline (TGC) 99 8830
Tobramycin (To) 93 9962
Trimethoprim/sulfa (T/S) 76 9962

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.