Clinical characteristics of ILI-patients in PKU People' Hospital between June 2010 and May 2011.

Values are median (IQR) or n (%) of patients unless otherwise stated. Normally distributed data are reported as means with 95% CI and non-normally distributed data as medians with interquartile range.The characteristics contain demography characteristics, medical history, presenting symptoms, and clinical findings.*Positive cases for at least one respiratory virus except Influenza A viruses by RT-PCT.**Telephone follow-up data mainly for RT-PCR-positive patients.##Includes all ILI cases regardless of virology RT-PCR test results.