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Seasonal Patterns of Respiratory Diseases: a Proxy for Influenza?
Content Type: Abstract
One of the most important goals of disease surveillance is to identify the "what" and "when" of an epidemic. Influenza surveillance is made difficult by inconsistent laboratory testing, deficiencies in testing techniques, and coding… read more… 2001 to Oct 2005. Data were diagnoses for all hospital visits (ED, inpatient, observation). GI visits (N= 1,167,711) were selected by ICD-9 codes using … was significant. RESULTS In Figure 1, numbers of visits with a GI Dx are displayed as overlapping one-year …