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Figure 3 | BMC Infectious Diseases

Figure 3

From: Characterizing the epidemiology, virology, and clinical features of influenza in China’s first severe acute respiratory infection sentinel surveillance system, February 2011 – October 2013

Figure 3

Hospitalized severe acute respiratory infection (SARI) patients and patients with confirmed influenza virus infection by month of illness onset, China, Febuary 1, 2011 to October 27, 2013. Panel A. Four Northern Hospitals: SARI patients (N=2,780) and patients with confirmed influenza virus infection (n=187). Panel B. Six Southern Hospitals: SARI patients (N=2,858) and patients with confirmed influenza virus infection (n=143). *SARI% = proportion of severe acute respiratory infection (SARI) patients among all hospitalized patients in the surveillance wards.

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BMC Infectious Diseases

ISSN: 1471-2334

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