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Updated: Oct 6, 2025
A Rapid Strategy for the Isolation of New Faustoviruses from Environmental Samples Using Vermamoeba vermiformis
Published on: June 4, 2016
Emergence of VIM-producing Enterobacter cloacae complex in France between 2015 and 2018
Cécile Emeraud1,2,3, Caroline Petit1, Lauraine Gauthier1,2,3
1Department of Bacteriology-Hygiene, Bicêtre Hospital, Assistance Publique-Hôpitaux de Paris, Le Kremlin-Bicêtre, France.
Objectives:
To genetically characterize VIM-producing Enterobacter cloacae complex (ECC) isolates recovered in France from 2015 to 2018.
Methods:
WGS, species determination, MLST, clonal relationship and genetic characterization were performed on 149 VIM-producing ECC isolates.
Results:
Among VIM-producing Enterobacterales, the prevalence of ECC increased drastically from 6% in 2012 to 52% in 2018. The most prevalent species were Enterobacter hormaechei subsp. hoffmannii (40.9%), E. hormaechei subsp. steigerwaltii (21.5%), E. hormaechei subsp. xiangfangensis (14.8%) and ECC clade S (17.4%). Major STs were ST-873 (17.5%), ST-66 (12.1%), ST-78 (9.4%), ST-419 (8.1%), ST-145 (4.7%), ST-50 (4.0%), ST-118 (4.0%) and ST-168 (4.0%). Finally, six different integrons were identified, with some being specific to a given blaVIM variant (In916 with blaVIM-1-aacA4'-aphA15-aadA1-catB2 and In416 with blaVIM-4-aacA7-dfrA1b-aadA1b-smr2 genes).
Conclusions:
This study demonstrated the genetic diversity among VIM-producing ECC isolates, indicating that their spread is not linked to a single clone.
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