Contagion

Local infectious-disease and environmental conditions, framed like a weather app — from free public CDC, USGS, and weather data.

Contagion shows the infectious-disease and environmental conditions around you, framed like a weather app.

TRACKED SIGNALS • COVID-19, Influenza A, and RSV — CDC wastewater viral activity, by state • Respiratory pressure — CDC Acute Respiratory Illness activity level • An overall index blending the tracked pathogens • Emerging detections — Mpox, Influenza A(H5), and Measles from CDC wastewater PCR • Notifiable diseases — cumulative cases this year for STDs, parasitic, and other reportable diseases (CDC NNDSS) • Air quality (US AQI) and UV index • Active National Weather Service alerts for your state • Earthquakes near you from the USGS

Pick any U.S. state, or use your location. A national map colors every state by the metric you choose.

All data comes from free public sources: the U.S. CDC, Open-Meteo, the USGS, and NOAA / the National Weather Service.

Contagion is for general awareness and education. It is not a medical device and does not provide diagnosis or personal medical advice. Always consult a qualified clinician or official public-health guidance.