Fig. 3 

Socio-economic factors of the analysed countries. Countries with a low mortality rate \(\widehat{\gamma }\) [individuals]) and a low recovery rate \(\widehat{\beta }\, [\mathrm{individuals}]\) (Chad \(\widehat{\gamma }=\) 0.063 and \(\widehat{\beta }=\) 0.853, Ecuador \(\widehat{\gamma }=\) 0.073 and \(\widehat{\beta }=\) 0.825, Mexico \(\widehat{\gamma }=\) 0.099 and \(\widehat{\beta }=\) 0.788), Sudan \(\widehat{\gamma }=\) 0.063 and \(\widehat{\beta }=\) 0.530), classified as outliers for D300 are marked in black