Question 24.3

Name the organisms that makeup the ESCAPPM group of organisms.

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College Answer

Enterobacter spp., Serratia spp., Citrobacter freundii, Acinetobacter spp., Proteus vulgaris, Providencia spp. and Morganella morganii.

Discussion

The ESCAPPM organisms are:

  • Enterobacter
  • Serratia
  • Citrobacrter
  • Acinetobacter (and Aeromonas)
  • Proteus
  • Providencia
  • Morganella

These are Gram-negative organisms with induceable chromosomal AmpC cephalosporinase/β-lactamase enzymes. Resistance to β-lactams and cephalosprins develops quickly in these species.

ESCAPPM and HACEK bacteria are discussed elsewhere in the Required Reading section.

References

BOYLE, ROBERT J., et al. "Clinical implications of inducible beta-lactamase activity in Gram-negative bacteremia in children." The Pediatric infectious disease journal 21.10 (2002): 935-939.

 

Sfakinos, John. "Detecting the dual presence of AmpC and ESBL enzymes."Microbiology Australia 30.5 (2009): 208-209.

 

Philippon, Alain, Guillaume Arlet, and George A. Jacoby. "Plasmid-determined AmpC-type β-lactamases." Antimicrobial agents and chemotherapy 46.1 (2002): 1-11.