Swiss Cheese Model (COVID)
Swiss cheese model for COVID risk reduction. Stacked layers of prevention reduce overall risk.
Formula
Risk = Vaccination Factor × Masking Factor × Distancing Factor
Boosted, always mask, strict distance
Inputs
- Vaccination Status: boosted
- Mask Usage: always
- Social Distancing: strict
Very low risk
Frequently asked questions
How does this work?
Each layer (vaccination, masks, distance) reduces risk. Combined layers = multiplied protection.