Calculate the effective reproduction number Rₜ = R₀ × S(t), where S(t) is the susceptible fraction at time t. Rₜ < 1 means case numbers are declining. Used for real-time epidemic monitoring.
Enter the values for the scenario you are assessing. Calculate the effective reproduction number Rₜ = R₀ × S(t), where S(t) is the susceptible fraction at time t. Rₜ < 1 means case numbers are declining. Used for real-time epidemic monitoring. Use the rₜ calculator result to inform your calculation.