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Related Experiment Videos

SARS among critical care nurses, Toronto.

Mark Loeb1, Allison McGeer, Bonnie Henry

  • 1Department of Pathology and Molecualr Medicine, McMaster University, Hamilton, Ontario, Canada. loebm@mcmaster.ca

Emerging Infectious Diseases
|March 20, 2004
PubMed
Summary
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Healthcare workers caring for severe acute respiratory syndrome (SARS) patients face infection risks during intubation procedures. Consistent use of N95 masks significantly protects nurses from SARS infection.

Area of Science:

  • Infectious Diseases
  • Occupational Health
  • Epidemiology

Background:

  • Severe Acute Respiratory Syndrome (SARS) posed a significant threat to healthcare workers (HCWs).
  • Understanding risk factors for HCW infection is crucial for developing effective prevention strategies.

Purpose of the Study:

  • To identify factors predisposing or protecting nurses from SARS infection.
  • To quantify the risk of SARS infection among critical care nurses.

Main Methods:

  • Retrospective cohort study of 43 nurses in Toronto critical care units.
  • Data collected on patient contact, procedures performed, and personal protective equipment (PPE) use.
  • Infection probability calculated per shift worked.

Main Results:

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  • Eight of 32 nurses entering SARS patient rooms were infected, with a 6% infection probability per shift.
  • High-risk activities included intubation, pre-intubation suctioning, and oxygen mask manipulation.
  • Consistent N95 mask use demonstrated significant protection; surgical masks offered less protection.

Conclusions:

  • Intubation-related activities are high-risk for SARS transmission to nurses.
  • Consistent use of N95 respirators is a critical protective measure for HCWs caring for SARS patients.
  • Occupational health guidelines should emphasize appropriate PPE, particularly N95 masks, during high-risk procedures.