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Related Experiment Video

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Methods for Detecting Cough and Airway Inflammation in Mice
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Aerosol generation during coughing: an observational study.

E Sanmark1,2, L A H Oksanen1,2, N Rantanen1,2

  • 1Facultie of Medicine, University of Helsinki, Helsinki, Finland.

The Journal of Laryngology and Otology
|May 11, 2022
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Summary
This summary is machine-generated.

Coughing generates significant aerosol concentrations, with considerable individual variation. This study provides a standard for measuring aerosol exposure during medical procedures, finding no difference between volitional and involuntary coughs.

Keywords:
AerosolAerosol Generating ProcedureCOVID-19CoughOptical Particle Sizer

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Area of Science:

  • Respiratory Science
  • Aerosol Science
  • Infectious Disease Control

Background:

  • The COVID-19 pandemic underscored gaps in understanding aerosol generation during respiratory activities.
  • Knowledge on aerosol exposure from medical procedures is limited, necessitating standardized measurement methods.

Purpose of the Study:

  • To quantify aerosol concentrations produced by coughing.
  • To establish a benchmark for evaluating aerosols in medical procedures.
  • To assess variations in aerosol generation during coughing.

Main Methods:

  • Aerosol concentrations were measured in 37 healthy volunteers using an optical particle sizer.
  • Measurements were taken at distances of 40 cm, 70 cm, and 100 cm.
  • Both volitional and involuntary coughs were analyzed.

Main Results:

  • A total of 306 volitional and 15 involuntary coughs were analyzed.
  • Significant variation in aerosol generation was observed among individuals.
  • No statistically significant difference in aerosol production was found between volitional and involuntary coughs.

Conclusions:

  • Measured aerosol exposure from coughing can inform risk assessment for medical procedures.
  • Individual variability in aerosol generation during cough is substantial.
  • The distinction between volitional and involuntary coughs does not impact aerosol production levels.