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Trends in coagulase-negative staphylococci (CoNS), England, 2010-2021.

Karthik Paranthaman1, Allegra Wilson1, Neville Verlander1

  • 1U.K. Health Security Agency, London, UK.

Access Microbiology
|July 10, 2023
PubMed
Summary

Coagulase-negative staphylococci (CoNS) reports from sterile sites in England increased until 2016, then stabilized. Species identification improved significantly, highlighting the need for ongoing CoNS epidemiology monitoring.

Keywords:
antimicrobial resistancecoagulase-negative staphylococciepidemiologyspecies distribution

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Area of Science:

  • Medical Microbiology
  • Infectious Diseases Epidemiology
  • Antimicrobial Resistance Surveillance

Background:

  • Coagulase-negative staphylococci (CoNS) are significant opportunistic pathogens.
  • Understanding CoNS epidemiology is crucial for infection control and treatment strategies.
  • Previous trends in CoNS infections from sterile sites in England require updated analysis.

Purpose of the Study:

  • To review the epidemiology of coagulase-negative staphylococci (CoNS) in England.
  • To analyze trends in CoNS reports from sterile sites between 2010 and 2021.
  • To assess changes in species identification and antimicrobial susceptibility.

Main Methods:

  • Retrospective analysis of laboratory-confirmed CoNS episodes from sterile sites in England.
  • Data extracted from the UK Health Security Agency (UKHSA) national laboratory database (2010–2021).
  • Statistical analysis of reported episodes, species distribution, and temporal trends.

Main Results:

  • Over 668,000 CoNS episodes were reported; unspeciated CoNS were most common (56%).
  • Unspeciated CoNS initially increased then decreased, while speciated CoNS showed consistent annual increases.
  • Significant improvements in species-level identification of CoNS were observed.

Conclusions:

  • CoNS reports from sterile sites increased until 2016 and stabilized thereafter.
  • Enhanced species identification of CoNS has occurred in recent years.
  • Continued monitoring of CoNS epidemiology is vital for clinical and public health interventions.