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Table 3 WHO case study comparison with Argus alerts by Region*

From: Event-based internet biosurveillance: relation to epidemiological observation

Region Alert N Pearson correlation coefficient P-value
Africa Alert 3 8 0.59 0.0099
Africa Alert 6 6 0.52 0.0254
Europe Alert 1 12 0.61 0.0072
Europe Alert 3 20 0.48 0.0446
Europe Alert 5 13 0.60 0.0090
Europe Alert 6 13 0.70 0.0012
Europe Alert 11 46 0.53 0.0222
Europe Alert 13 20 0.63 0.0047
Latin America Alert 3 4 0.49 0.0391
Middle East Alert 3 8 0.66 0.0027
Middle East Alert 13 5 0.54 0.0212
Russia and Central Asia Alert 6 22 0.56 0.0148
Russia and Central Asia Alert 13 35 0.64 0.0040
South Asia Alert 6 10 0.47 0.0487
Southeast Asia, Oceania, Canada Alert 11 4 0.82 <0.0001
  1. *Only statistically significant results shown (p < 0.05).