Factors associated to the risk of <i>Ebolavirus</i> spillover used in the GIS-MCE.

Similar factors (in parenthesis) were considered as one factor for the classification. Some studies did not provide a significance value for the factors (NA). Significance of the risk factor is shown as NS: non-significant /*: p < 0.05 or ≤ 33% of variation explained /**: p < 0.01 or 33% to 66% of variation / ***: 0.001 or > 66% of variation explained.