Draft Whole-Genome Sequence of VIM-1-Producing Multidrug-Resistant Enterobacter cloacae EC_38VIM1

Area of Science:

• Microbiology
• Genetics
• Infectious Diseases

Background:

• Multidrug-resistant bacteria pose a significant threat to public health.
• Enterobacter cloacae is an opportunistic pathogen frequently associated with hospital-acquired infections.
• The emergence of metallo-β-lactamases (MBLs) like VIM-1 contributes to resistance against a broad spectrum of β-lactam antibiotics.

Purpose of the Study:

• To characterize a multidrug-resistant Enterobacter cloacae strain isolated from a blood culture.
• To identify the genetic basis of antibiotic resistance in the isolated strain.
• To investigate the presence and location of resistance genes, particularly VIM-1.

Main Methods:

• Isolation and identification of Enterobacter cloacae from blood cultures.
• Phenotypic antibiotic susceptibility testing against a panel of clinically relevant antibiotics.
• Molecular analysis, including polymerase chain reaction (PCR) and sequencing, to detect and characterize antibiotic resistance genes.
• Investigation of gene location using integron analysis.

Main Results:

• A VIM-1-producing multidrug-resistant Enterobacter cloacae strain was successfully isolated.
• The strain demonstrated resistance to multiple antibiotic classes, including all tested β-lactams, fluoroquinolones, aminoglycosides, and sulfonamides.
• Sequence analysis confirmed the presence of 14 antibiotic resistance genes, including the VIM-1 gene.
• The VIM-1 gene was found to be located within a class 1 integron.

Conclusions:

• The identified Enterobacter cloacae strain represents a significant challenge due to its extensive multidrug resistance profile.
• The presence of the VIM-1 gene within a class 1 integron facilitates the potential spread of this resistance determinant.
• This finding underscores the importance of continuous surveillance and characterization of multidrug-resistant organisms in clinical settings.