kluyvera kluyvera kluyvera is a gram negative, facultatively anaerobic bacterial and motile genus from the family of enterobacteriaceae which have peritrichous flagella. kluyvera occur in water, soil and sewage. kluyvera bacteria can cause opportunistic infections in immunocompromised patients. kluyvera scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: enterobacterales family: enterobacteriaceae genus: kluyverafarmer et al. 1981 type species kluyvera ascorbata species k. ascorbata k. cryocrescens k. georgiana k. intermedia etymology the etymology of this genera is the following : kluy’ver.a. n.l. fem. n. kluyvera, named given by asai et al. in 1956 to honor the dutch microbiologist a.j. kluyver. transference of antibiotic resistance in 2010, a gene blactx-m-15 responsible for coding ctx-m-15 extended-spectrum β-lactamase (esbl) jumped from its chromosome to its plasmid, which was then shared among several bacteria. esbl confers resistance to pathogenic bacterial strains. this caused the development of antibiotic resistance in almost all known pathogenic bacteria at that time.