Article
Using Laboratory-Based Surveillance Data for Prevention: An Algorithm for Detecting <i>Salmonella</i> Outbreaks
1 Sept 1997
Abstract excerpt
By applying cumulative sums (CUSUM), a quality control method commonly used in manufacturing, we constructed a process for detecting unusual clusters among reported laboratory isolates of disease-causing organisms. We developed a computer algorithm based on minimal adjustments to the CUSUM method, which cumulates sums of the differences between frequencies of isolates and their expected means; we used the...
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