Fig. 1
From: Identifying the main drivers of transmission in the early phase of the COVID-19 pandemic in Portugal
Next generation matrix \(\textbf{K}\) (a). Transmission parameters \(R_0\), \(\mathbf {k_{\cdot j}}\) and \(\mathbf {k_{i \cdot }}\) represent the basic reproduction number, average number of infections caused by an individual in age group j in a generation and sum of infections per generation in age group i caused by one individual of each age group, respectively (\(j=1,...,8\)) (b). Proportion of infections belonging to each age group, (relative incidence vector \(\textbf{w}_1\)) (c).
