Coronavirus Protection – Swiss Cheese Model
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Coronavirus Protection – Swiss Cheese Model

Visualize layers of protection against COVID-19

What is the Swiss Cheese Model?
The Swiss Cheese Model illustrates how multiple imperfect layers of protection (like slices of Swiss cheese with holes) combine to reduce the risk of COVID-19 transmission. Each layer has weaknesses, but together they provide strong protection.

Key Layers of Protection

  • Vaccination
  • Mask Wearing
  • Physical Distancing
  • Hand Hygiene
  • Ventilation
  • Testing & Isolation
  • Staying Home When Sick
  • Contact Tracing
  • Eye Protection
  • Community Measures

Combining multiple layers greatly reduces risk. No single layer is perfect!

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