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Table 1 Definition of MDR Gram-negative bacteria [20]

From: Impact of single room design on the spread of multi-drug resistant bacteria in an intensive care unit

  ESBL carbapenems fluoroquinolons aminoglycosides ceftazidime piperacillin cotrimoxazole
K. pneumonia A A B B    
other Enterobacteriaceaea    B B    B
P. aeruginosa   C C C C C  
A. baumannii   A B B B   
  1. MDR multi-drug resistant
  2. a Proteus, Morganella, Serratia, Citrobacter, Enterobacter spp.
  3. A: presence of ESBL production or resistance against this antibacterial agent or group is sufficient to define the microorganism as being MDR
  4. B: resistance against 2 antibacterial agents or against at least 2 of the indicated groups is required to define the microorganism as being MDR
  5. C: resistance against 3 antibacterial agents or against antimicrobial agents from at least 3 of the indicated groups is required to define the microorganism as being MDR
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