Fig. 2

Similarities in the spatial dependence of DENV1 and DENV3 incidence in mosquitoes. a Variogram envelopes where dashed lines are the modelled semivariance (variance between points at a varying distance) for DENV1 (green) and DENV3 (red) incidence in mosquitoes. The continuous lines are the envelopes for DENV1 (green) and DENV3 (red). If the modelled variogram crosses the simulation envelopes it is considered significantly different which was not the case. b Variogram isotropy test where ΔM, DENV incidence, variograms at 0 (green) and 90 (red) degrees. The two curves shows that the variogram changes along distance are similar in the two orthogonal directions in space