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Figure 2 | BMC Public Health

Figure 2

From: Evaluating Syndromic surveillance systems at institutions of higher education (IHEs): A retrospective analysis of the 2009 H1N1 influenza pandemic at two universities

Figure 2

University A student influenza-like illness (ILI) cases reported to student health center (SHC), hospital emergency department (HED) and deans' offices compared to regional American College Health Association (ACHA) influenza surveillance, CDC Outpatient Influenza-like Illness Surveillance Network (ILINet) and local Google Flu Trends data.

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