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Fig. 1 | BMC Emergency Medicine

Fig. 1

From: Human temperatures for syndromic surveillance in the emergency department: data from the autumn wave of the 2009 swine flu (H1N1) pandemic and a seasonal influenza outbreak

Fig. 1

Temperatures collected during influenza epidemic periods and other periods. Panel (a) presents the distribution of all temperatures collected at a Boston emergency department during the autumn–winter wave of the 2009–2010 H1N1 pandemic in New England (September 14, 2009–December 6, 2010), 2010–2011 seasonal flu outbreak in New England (January 24, 2010–March 13, 2011), and periods without unusually elevated influenza activity (remaining dates between September 10, 2009 and August 29, 2011). Fevers are shown in red and non-fevers are shown in blue. For clarity, panel (b) presents the results for fevers only. Each period was defined based on data from the CDC’s Outpatient Influenza-like Illness Surveillance Network (ILINet)

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BMC Emergency Medicine

ISSN: 1471-227X

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