Therefore, using equation 7, a network-based risk index of one describes
a municipality with the highest risk to receive infected animals by
animal movements for the considered network.
Additionally, we also calculated a population-based index that
standardized the raw index by the swine population reported for the last
year of analysis in each municipality. We scaled the animal population
size from zero to one, representing the proportion of animals in the
municipality. In order to show the swine population at-risk related to
the network-based risk index (equation 7), we scaled the index by swine
population, following eq 8,