📚 Key Information & Science
Learn about the methodology, data sources, and scientific research behind these calculations.
🌬️ Airborne Transmission
How exposure risk is calculated
Learn about aerosol physics, ventilation modeling, activity effects, and how environmental factors influence infection risk.
🧪 Test Results
How infection probability is calculated
Understand how symptoms, local data, and test accuracy combine to estimate your infection probability.
🛡️ Immunocompromised Support
Risk adjustments for vulnerable populations
Learn how the exposure calculator recognizes that immunocompromised individuals face higher infection risk and adjusts estimates for them.
Disclaimer: This site provides mathematical calculations for educational purposes only. It is not intended as medical advice, diagnosis, or treatment.