Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital

Core genome multi-locus sequence typing as an essential tool in a high-cost livestock-associated meticillin-resistant Staphylococcus aureus CC398 hospital outbreak

Research output: Contribution to journalJournal articleResearchpeer-review

  1. Repeated introduction and spread of the MRSA clone t304/ST6 in Northern Europe

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Prevalence of MRSA nasal carriage among pregnant women in Copenhagen

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. SARS-CoV-2 in first trimester pregnancy: a cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Antibodies at Delivery in Women, Partners, and Newborns

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. ResFinder 4.0 for predictions of phenotypes from genotypes

    Research output: Contribution to journalJournal articleResearchpeer-review

  • Marie Louise Slott Jensen
  • Marianne Nielsine Skov
  • Helle Pries Kristiansen
  • Annette Toft
  • Hanne Lundgaard
  • Heidi Gumpert
  • Henrik Westh
  • Anette Holm
  • Hans Jørn Kolmos
  • Michael Kemp
View graph of relations

Background: Livestock-associated meticillin-resistant Staphylococcus aureus (LA-MRSA) clonal complex (CC) 398 may be transmitted and cause morbidity and mortality in hospitals. The economic cost of stopping hospital transmission of LA-MRSA CC398 is poorly described. Early detection of transmission may limit the extent of the intervention. Aim: To evaluate core genome multi-locus sequence typing (cgMLST) for detecting transmission chains and to estimate the costs for interventions to prevent further spread after discovery of hospital transmission of LA-MRSA CC398. Methods: Five patients were involved in two episodes of transmission of LA-MRSA CC398 in a hospital. Standard interventions including MRSA screening of patients and healthcare workers were initiated. Whole genome sequences of the five isolates and 17 epidemiologically unrelated MRSA CC398 isolates from other hospitalized patients were analysed by single nucleotide polymorphism (SNP) comparisons and cgMLST. The economic costs of constraining transmission were calculated from relevant sources. Findings: The five isolates suspected to be involved in hospital transmission clustered with ≤2 SNPs in the draft genome sequences with some distance to other isolates. cgMLST allocated the five isolates to the same type, which was different from all but two of the sporadic isolates. Furthermore, cgMLST separated the five transmission isolates from all other isolates. The economic costs of the outbreak interventions exceeded €11,000 per patient. Conclusion: LA-MRSA CC398 is transmittable in hospitals, and intervention against transmission may reach considerable costs. cgMLST is useful in surveillance of hospital transmission of LA-MRSA.

Original languageEnglish
JournalThe Journal of hospital infection
Issue number4
Pages (from-to)574-581
Number of pages8
Publication statusPublished - Apr 2020

Bibliographical note

Copyright © 2019 The Healthcare Infection Society. Published by Elsevier Ltd. All rights reserved.

    Research areas

  • cgMLST, Economic costs, Hospital outbreak, Livestock-associated MRSA, MRSA CC398, Whole genome sequencing

ID: 58720664