How is the Basic Reproduction Number (R0) Calculated Using NGM?
The basic reproduction number (R0) is calculated as the spectral radius (the largest eigenvalue) of the NGM. Mathematically, this is expressed as:
R0 = ρ(FV-1)
Here, ρ denotes the spectral radius, F is the infection matrix, and V is the transition matrix. A higher R0 indicates a more contagious disease, while an R0 less than 1 suggests that the disease will eventually die out.
