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KMID : 0364820120480040229
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Korean Journal of Microbiology
2012 Volume.48 No. 4 p.229 ~ p.239
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Current Cronobacter spp. Researches on Prevalence, Control, and Detection
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Song Kwang-Young
Chon Jung-Whan
Kim Hyun-Sook
Seo Kun-Ho
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Abstract
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Cronobacter spp. (formerly Enterobacter sakazakii), a Gram-negative bacillus, is a rare cause of meningitis and
central nervous system infections. In England, the first case infected by this organism occurred in 1958. By July
2008, approximately 120 documented cases of Cronobacter spp. infection and at least 27 deaths have been identified
from all around the world in the published literature and in reports submitted by public health sectors. In 2007, it was
proposed by European organizations that the original taxonomy of E. sakazakii would be revised, to consist of five
new species moved to a new genus, and identified as "Cronobacter". E. sakazakii has thus now been reclassified as 6
separate species in the new genus, Cronobacter, gen. nov., within the Enterobacteriaceae family. The new species are
presently Cronobacter sakazakii, C. turicensis, C. malonaticus, C. muytjensii, and C. dublinensis; the sixth species is
identified simply as genomospecies I, as currently including only two representative strains. The objectives of this
review are to provide insight on (1) the classification and taxonomy of Cronobacter spp., (2) its clinical etiology
and pathogenicity, (3) prequency of Cronobacter spp. in different categories of ready-to-eat food other than infant
formula, (4) methods for detecting, isolating and typing Cronobacter spp., and (5) recent research trends for
detecting Cronobacter spp.
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KEYWORD
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Cronobacter spp., Enterobacter sakazakii, detection method, etiology, taxonomy
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