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Setup of Consumer Wearable Devices for Exposure and Health Monitoring in Population Studies
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Privacy and contact tracing efficacy.

Sebastian Benthall1, Erez Hatna2, Joshua M Epstein2

  • 1New York University, School of Law, 40 Washington Sq So, 10012 New York, NY, USA.

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|September 21, 2022
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Summary
This summary is machine-generated.

High smartphone adoption for COVID-19 contact tracing is key. Tracing distant contacts is less critical than achieving widespread use, suggesting policy should prioritize adoption over comprehensiveness.

Keywords:
contact tracingprivacysimulation

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Area of Science:

  • Epidemiology
  • Public Health
  • Computational Modeling

Background:

  • The COVID-19 pandemic spurred interest in smartphone-based contact tracing for disease control.
  • Smartphone tracing offers potential advantages over traditional methods but raises novel privacy concerns.
  • Fear of disclosing privacy-sensitive, socially distant contacts may hinder adoption.

Purpose of the Study:

  • To investigate the impact of tracing socially distant contacts in infectious disease transmission models.
  • To assess the trade-offs between tracing comprehensiveness and adoption rates in contact tracing strategies.

Main Methods:

  • Modification of the standard SEIR (Susceptible-Exposed-Infectious-Recovered) infectious disease transmission model.
  • Incorporation of contact tracing mechanisms into the SEIR model.
  • Simulation studies on a simplified network model to analyze contact tracing effectiveness.

Main Results:

  • Ensuring the tracing of socially distant contacts was found to be surprisingly unimportant in a simple network model.
  • The effectiveness of tracing distant contacts is contingent on achieving sufficiently high overall contact tracing adoption rates.
  • Widespread adoption of contact tracing significantly mitigates the need for comprehensive tracing of all contact types.

Conclusions:

  • Policy-makers should prioritize maximizing adoption rates for smartphone-based contact tracing systems.
  • A willingness to trade off tracing comprehensiveness for higher adoption is recommended for effective disease control.
  • Focusing on broad adoption may be more beneficial than attempting to trace every single contact, especially privacy-sensitive ones.