Screening results of respiratory viruses in 3460 patients.

Throat swabs of 3460 patients with acute respiratory infection symptoms during 2010–2011 were collected and screened for influenza (Inf), parainfluenza (PIV), respiratory syncytial virus (RSV), human metapneumovirus (HMPV), human coronaviruses (HCoV), adenovirus (AdV) and human bocavirus (HBoV). Positive case numbers for each screened virus and their corresponding infection rate (% of positive cases in detected patients) were shown, Infants: ≤2 years old, children: 2∼15 years old, adults: >15 years old. Among 731 Inf patients, 558 and 172 were positive for influenza A and B, respectively, but only 1 was positive for C (Fig. S1A). In 558 cases positive for influenza A, 85.13% and 0.72% were identified to be seasonal influenza H3N2 and H1N1, respectively, while 14.15% were found to be 2009 pandemic influenza H1N1. Among 120 cases positive for PIV, 25%, 12.5%, 58.33% and 4.17% were identified to be PIV-1, -2, -3 and -4, respectively (Fig. S1B). Among 90 patients positive for HCoV, 62 cases were identified to be infected by 229E, OC43, NL63 and HKU1, in which infection rates of children vs adults were 0.65% vs 0.17%, 1.13% vs 0.17%, 0.65% vs 0.17% and 0.71% vs 0.06%, respectively.