Interpretation

• Dots are historical data on new and cumulative cases

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• Color coded by date

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• Lines are 30-day ahead predictions (corresponding color coding)

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• Points consistently tracking along lines indicate natural epidemic behavior, and vice versa

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• Greater scattering + variability of consecutive lines indicates greater unpredictability and less consistency in epidemic behavior

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• Red markers indicate statistically significant epidemic changes (Upward triangles: rate increases; Downward triangles: rate decreases; Squares: variance increases)