Fig. 2

Transmission advantage for variants detected in Bogotá since March 2021. a Multinomial regressions setting Alpha as the pivot variant (95% BCI). b Results for the transmission advantage between Alpha, Delta, Gamma, Mu, and Omicron. The first row of the heatmap contains the coefficient obtained directly for the multinomial regressions, which describes the advantage of a variant \(v\) (Alpha, Delta, Gamma, Mu, and Omicron) with respect to the reference variant Alpha. Notice that the first matrix element in this diagram trivially equals zero, as well as the whole diagonal of the matrix, because there is no advantage of any variant with respect to itself