ERI > 1 and EPI > 1. (Red zone: high risk of an exponential growth).
ERI > 1 and EPI < 1. (Orange/amber zone: moderate risk, the next wave may be large if it starts now).
ERI < 1 and EPI > 1. (Yellow zone: moderately low risk, with the potential to move to a higher level risk).
ERI < 1 and EPI < 1. (Green zone: low risk).
Notation: EPI -Epidemic Index; ERI - Epidemic Risk Index.
For the latest graphs, see the page More Graphs.