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Modelling disease transmission from touchscreen user interfaces.

Andrew Di Battista1, Christos Nicolaides2,3,4, Orestis Georgiou1,5

  • 1Ultraleap Ltd, Bristol, UK.

Royal Society Open Science
|August 5, 2021
PubMed
Summary
This summary is machine-generated.

Touchscreens can spread diseases. Stochastic simulations show that while cleaning screens reduces disease spread (R), increasing touch rates paradoxically lowers R. Alternative tech strategies may be more effective.

Keywords:
disease transmissionfomitestochastic modeltouchscreen

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Area of Science:

  • Epidemiology
  • Computational Biology
  • Human-Computer Interaction

Background:

  • Touchscreen devices are ubiquitous in daily life, facilitating human-computer interactions.
  • Their extensive use raises concerns about their potential role in transmitting infectious diseases via touch (fomite transmission).

Purpose of the Study:

  • To model human-fomite interactions specifically on touchscreen interfaces using stochastic simulations.
  • To investigate the impact of various parameters, including touch rates and cleaning frequency, on disease transmission dynamics.

Main Methods:

  • Utilized stochastic simulations and queuing network models to represent interactions within a population of infectious and susceptible individuals.
  • Introduced a pseudo-reproductive number (R) to quantify and compare disease transmission outcomes under different conditions.
  • Applied the model to a real-world scenario: airport self-check-in kiosks.

Main Results:

  • An unexpected finding was that the pseudo-reproductive number (R) decreased as touch rates for touchscreen interaction increased.
  • The frequency of screen cleaning/disinfection was identified as a critical factor in mitigating disease transmission (R).
  • The study suggests that alternative technological strategies might offer more effective disease control than solely relying on cleaning.

Conclusions:

  • The developed simulation model provides a robust framework for understanding and predicting fomite-mediated disease transmission via touchscreens.
  • Findings highlight the complex relationship between interaction frequency and disease spread, necessitating further research into effective mitigation strategies.
  • The study underscores the importance of considering technological design and intervention in public health strategies for touch-enabled interfaces.