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Table 2 Comparison of influenza surveillance improvement strategies: Baseline and follow-up output values for hypothetical example

From: Strategies to improve global influenza surveillance: A decision tool for policymakers

   Baseline Follow-up
   Probability (%) Time (days) Probability (%) Time (days)
Detection from clinical sites
Path 1 Doctor orders laboratory test 0.15 23 16.0 15
Path 2 Hospital orders laboratory test 0.03 23 5.1 15
Path 3 Reporting by sentinel doctor 0.0 30 2.6 23
Path 4 Reporting by sentinel hospital 0.0 30 4.2 23
Path 5 Active surveillance of doctors 0.0 30 8.6 23
Path 6 Active surveillance of hospitals 0.0 30 4.6 23
Detection from community sites
Path 7 Tracking of employee sick days 0.0 35 8.6 28
Path 8 Tracking of electronic media 0.03 41 43.2 34
Path 9 Detection by community-based monitoring system 0.01 43 10.8 36