what is cre infection
Carbapenem-resistant enterobacteriaceae (CRE) or Carbapenemase-producing Enterobacteriaceae (CPE) , are gram-negative bacteria that are nearly resistant to the carbapenem class of antibiotics, considered the  drug of last resort  for such infections. Enterobacteriaceae are common commensals and infectious agents.arbapenem-resistant enterobacteriaceae (CRE) have been defined as carbapenem-nonsusceptible and extended-spectrum cephalosporin-resistant Escherichia coli, Enterobacter aerogenes, Enterobacter cloacae complex, Klebsiella pneumoniae, or Klebsiella oxytoca.