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513. Transmission of Carbapenem-Resistant Enterobacteriaceae in a Community-Based, Residential Care Setting: Nevada, 2018

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  • Alternative Title:
    Open Forum Infect Dis
  • Personal Author:
  • Description:
    Background

    Klebsiella pneumoniae carbapenemase-producing organisms (KPCOs) are often multidrug-resistant, and the KPC resistance determinant can be transmitted between bacteria. KPCOs are associated with healthcare facility exposures; identification in community-based, residential care settings is uncommon. In September 2018, the Washoe County Health District was notified of a KPC-producing Escherichia coli from a group home (GH) resident. We investigated the source of this KPCO and evaluated transmission in the GH.

    Methods

    A case was defined as detection of KPCO from a GH resident or staff from June 1 to November 30, 2018. Staff included caregivers who provided daily care (including toileting, bathing, feeding) and visiting healthcare workers. Residents and staff were offered KPCO screening to assess colonization status. Exposures were assessed by medical record review and interviews. Genetic relatedness of KPCOs was evaluated by whole-genome sequencing (WGS). Infection prevention and control (IPC) practices were reviewed.

    Results

    Overall, six cases were identified, including the index, two of seven staff screened and three of six residents screened. Three residents with KPCOs had recent hospitalizations and shared a bathroom in the GH; one overlapped on the same hospital unit as a patient with KPC-producing Klebsiella oxytoca. Staff with KPCOs were caregivers who had extensive contact with residents and their environment and no IPC training. Gaps in hand hygiene and environmental cleaning were observed. Organism was recovered from 4 positive screening tests as well as from blood cultures from the index case; all were KPC-producing E. coli. WGS showed that the five E. coli isolates were closely related, consistent with transmission, and harbored the same KPC variant as the K. oxytoca. No new cases occurred after IPC was improved.

    Conclusion

    A GH resident likely acquired KPCOs during a recent hospitalization, and extensive transmission among GH residents and staff occurred. Factors contributing to transmission included resident dependence on caregivers for daily care and minimal IPC knowledge among caregivers. Facilities with similar populations should increase IPC training to prevent transmission of resistant pathogens.

    Disclosures

    All authors: No reported disclosures.

  • Subjects:
  • Source:
    Open Forum Infect Dis. 2019; 6(Suppl 2):S248
  • Pubmed Central ID:
    PMC6811289
  • Document Type:
    Journal Article
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