Signalto Noise Ratio

If the surveillance data can be formed into a time series, as illustrated by Figure 21.1, evaluators can use a variety of methods to understand their informational value for detecting outbreaks of disease.

The evaluator will first examine the time series visually to determine whether an outbreak effect is present. The evaluator

Footprint of Influenza in Routinely Collected Data

A^d n

0 0

Post a comment