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Figure 2 | BMC Public Health

Figure 2

From: Lessons from a one-year hospital-based surveillance of acute respiratory infections in Berlin- comparing case definitions to monitor influenza

Figure 2

Incidence of hospitalized respiratory infections fulfilling criteria for CD1b and CD4 as a percentage of internal medicine ward admissions in the study hospitals per calendar week. Weekly incidences are shown together with predicted incidences and 95%CI according to Poisson regression. All pH1N1 cases notified in Berlin through the national routine surveillance system, 2009-2010 are shown for comparison.

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BMC Public Health

ISSN: 1471-2458

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