Table 1 Parameters describing the exponential growth phase.

From: Similarities between pandemics and cancer in growth and risk models

R reproduction number % increase per day T2 [d] doubling time τ [d] characteristic time 1/τ [d−1] risk
1 0 0
1.023 2.3 30 43.3 0.023
1.104 10.4 7 10,1 0.099
1.21 21 3.63 5.24 0.191
2 100 1 1.44 0.694