stenotrophomonas maltophilia on MacConkey

Stenotrophomonas maltophilia is naturally resistant to a wide variety of commonly used antibiotics:

First-generation cephalosporins (e.g., cefazolin, cefalexin)
Second-generation cephalosporins (e.g., cefoxitin, cefuroxime)
Carbapenems: imipenem, meropenem, ertapenem
Nitrofurantoin
Tetracycline
Kanamycin

Abbreviations:
  • AMC amoxicillin/clavulanate (penicillins)
  • AMP ampicillin (penicillins)
  • ATM aztreonam (monobactams)

  • CIP ciprofloxaxin (quinolones) - alternative treatment; should be tested
  • COX cefotaxime (ceph. III. generation)
  • CPD cefpodoxime (ceph. III. generation)
  • CXM cefuroxim (ceph. II. generation)
  • CXN cefalexin (ceph. I. generation)
  • CZD ceftazidime (ceph. III. generation)

  • FEP cefepime (ceph. IV. generation)
  • FOX cefoxitin (ceph. II. generation)

  • SXT trimethoprim-sulfamethoxazole, Co-trimoxazole (sulfonamides) - the treatment of choice; should be tested

  • NFE nitrofurantoin (nitrofurans)