Epidemiological characteristics and sources of reporting of the identified cases of the four syndrome-groups through the SID-SSS in Taipei City, 1 January 2010–31 August, 2011.

<p><b>SID-SSS</b>: School-based Infectious Disease Syndromic Surveillance System</p><p><b>EVI</b>: enterovirus-like illness, <b>ILI</b>: influenza-like illness, Reported Case Number (%), Absenteeism % of Reported Cases, Consistency in Clinical Diagnosis (Dx), Family Members with Similar Symptoms (S.S.) %</p><p>*Mean ± Standard Deviation (S.D.) of lag days from symptoms onset to data entry</p><p>Epidemiological characteristics and sources of reporting of the identified cases of the four syndrome-groups through the SID-SSS in Taipei City, 1 January 2010–31 August, 2011.</p

Temporal trends of EVI (A) and ILI (B) cases obtained from the SID-SSS were compared with those collected from the ED-SSS in Taipei City, 1 January, 2010 to 31 August, 2011.

<p><b>SID-SSS</b>: School-based Infectious Disease Syndromic Surveillance System <b>ED-SSS</b>: Emergency Department-based Syndromic Surveillance System <b>“*”</b> with light purple background indicates the winter vacation (Lunar New Year): Week 4–7, 2010 and 2011. <b>“**”</b> with light pink background indicates the summer vacation: Week 27–34, 2010. Our compiled and summarized data for <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0122865#pone.0122865.g003" target="_blank">Fig 3</a> are freely available in supplementary file in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0122865#pone.0122865.s003" target="_blank">S2 Table</a>.</p

Temporal trends in the incidence rates of EVI (A) and ILI (B) cases among the three age groups in the SID-SSS compared with those collected from the LHID2005 in Taipei City, 1 January 2010 to 31 August 2011.

<p><b>SID-SSS</b>: School-based Infectious Disease Syndromic Surveillance System <b>LHID2005</b>: Longitudinal Health Insurance Database 2005 <b>“*”</b> with light purple background indicates the winter vacation (Lunar New Year): Week 4–7, 2010 and 2011. <b>“**”</b> with light pink background indicates the summer vacation: Week 27–34, 2010. </p

Spatial diffusion of EVI (A) and ILI (B) syndromic cases in the Central Businesses District (CBD) and sub-urban areas of Taipei, at 10 week-peak periods of the epidemic seasons during the study period.

<p>(A) EVI diffusion map with mean incidence from Week 19, 2010 to Week 28, 2010 (B) ILI diffusion map with mean incidence from Week 47, 2010 to Week 4, 2011 <b>The four geographic groups A:</b> Taipei Central Businesses District (Taipei-CBD), <b>B</b>: the para-CBD, <b>C</b>: the northern suburbs, and <b>D</b>: the south-eastern suburbs. </p