Rt: Effective Reproduction Number

A common concern is the rate at which the virus is growing. This is known as Rt - the average number of people who become infected by an infectious person. If the Rt > 1, the virus will spread quickly and if Rr < 1, the virus will stop spreading. This model was created by Kevin Systrom and Thomas Vladeck and the case count data is collected from The COVID Tracking Project.

This website is provides visualizations of the trends emerging from each state to give us an idea of the transmission rate for each state.

To check out the predictions from your state, click here: https://rt.live

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Donated and Created by Dr. John Maese, Dr. Donna Seminara, and Dr. Zeel Shah.