SARS-CoV-2 Risk Quantification Model and Validation Based on Large-Scale Dutch Test Events

Area of Science:

• Public Health
• Epidemiology
• Event Management

Background:

• Governments worldwide implemented lockdowns in 2020 due to the SARS-CoV-2 outbreak to prevent healthcare system overload.
• While vaccines became available in 2021, they do not offer complete risk reduction, necessitating continued precautions.
• The feasibility of organizing large-scale events like concerts and festivals remains a concern.

Purpose of the Study:

• To present a novel method for quantifying COVID-19 risk at large-scale events.
• To provide a framework for developing alternative safety measures beyond generic social distancing.
• To support the safe resumption of public gatherings and events.

Main Methods:

• Development of a risk quantification model specific to COVID-19 transmission at events.
• Application of the model to assess risks associated with various event types.
• Integration of risk assessment into the planning of event-specific mitigation strategies.

Main Results:

• The proposed method allows for a quantitative assessment of COVID-19 risks at events.
• It facilitates the design of tailored safety protocols adaptable to different event scenarios.
• The quantification method serves as a basis for replacing broad social distancing mandates.

Conclusions:

• A quantifiable risk assessment method for COVID-19 at events has been established.
• This approach enables the development of event-specific risk management strategies.
• The findings support the conditional organization of large-scale events during the pandemic.