Cronobacter spp.

Name: Enterobacter sakazakii or Cronobacter spp.
A taxonomic reclassification of the neonatal pathogen Enterobacter sakazakii to consist of four species, one genomospecies, and two subspecies within a new genus, "Cronobacter," has in 2007 been proposed.
  • C. sakazakii comb. nov. with C. sakazakii subsp. sakazakii comb. nov. and C. sakazakii subsp. malonaticus subsp. nov.
  • C. muytjensii sp. nov.
  • C. dublinensis sp. nov.
  • C. turicensis sp. nov.
  • Cronobacter genomospecies 1

Symptoms: causes sepsis, meningitis and gastric disease in neonates, mostly pre-term infants, low birth weight infants or immunocompromised infants in the first weeks (opportunistic pathogen!)
Minimum Infectious Dose: Unknown (for mice 108 cfu)
Inkubation Time: ca. 3 h
Duration of Illness: ? (permanent damages possible)
Trigger Factor: Mechanismus is not fully understand but it is assumed that endotoxines are produced. The bacterium can adhere to the cells and penetrate into various of cells (e.g. endothelial cells). Survives in makrophages.
Infection Source:
  • Naturally source is not fully understand. It was isolated from production facilities, but also from the environment (ubiquitary)
  • infant formula
  • UHT-milk
  • cheese
  • fermented bread
Possibilities to minimise the Risk:
  • Store food in refrigerator and not too long
  • Prepare milk from the powder immediately before use with boiled water, do not store for longer times.

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38948 Selective media for Cronobacter spp.
Cronobacter screening broth for microbiology CSB
14703 Selective & Differential Media for Cronobacter spp.
Cronobacter spp. ChromoSelect Agar, modified for microbiology Cronobacter spp. isolation agar Enterobacter sakazakii isolation agar CSIA ESIA
92324 Selective & Differential Media for Cronobacter spp.
Cronobacter spp. ChromoSelect Agar for microbiology Enterobacter sakazakii ChromoSelect Agar ChromoSelect Enterobacter sakazakii Agar DFI Agar Druggan-Forsythe-Iversen Agar
89916 Selective media for Cronobacter spp.
Modified Lauryl Sulfate Tryptose Broth ISO/TS 22964 for microbiology Lauryl Sulfate Tryptose Broth, modified mLST
77187 Nonselective media for Cronobacter spp.
Peptone Water, phosphate-buffered for microbiology Buffered Peptone Water Tryptone Phosphate Water
22091 Nonselective media for Cronobacter spp.
Tryptic Soy Agar for microbiology CASO Agar Soybean Casein digest Agar TSA Tryptone Soya Agar