The prevalence (%) of clinical manifestation of dengue diseases from previous studies.

<p>ND = no data.</p>a<p>include both myalgia and arthralgia.</p

Number of serological confirmed dengue cases from January to December in 2006–2009.

<p>Number of serological confirmed dengue cases from January to December in 2006–2009.</p

Dengue incidence.

<p>(<b>A</b>) Shown is the incidence by school in each year. (<b>B</b>) Shown is the incidence by school in all years.</p

The prevalence of common symptoms in dengue infection by the day of illness.

<p>The prevalence of common symptoms in dengue infection by the day of illness.</p

Symptoms and disease severity from different dengue serotypes [n (%)].

<p>Symptoms and disease severity from different dengue serotypes [n (%)].</p

Symptoms of dengue infection [n (%)].

a<p>significantly more common in DHF compared to DF and UF, but no difference between UF and DF.</p>b<p>significantly less common in UF compared to DF and DHF, but no difference between DF and DHF.</p>c<p>significantly more common in DHF compared to DF and UF, and more common in DF compared to UF.</p

Occurrence of selected clinical manifestations [n/total] and their predictive value (%) for DHF among dengue infected cases.

<p>Occurrence of selected clinical manifestations [n/total] and their predictive value (%) for DHF among dengue infected cases.</p

The number of dengue infected patients who had prolonged symptom (for 3 or more days) [n (%)].

<p>NA = not applicable.</p>a<p>significantly more common in DHF compared to DF and UF, but no difference between DF and UF.</p>b<p>significantly less common in UF compared to DF and DHF, but no difference between DF and DHF.</p>c<p>significantly more common in UF compared to DF and DHF, but no difference between DF and DHF.</p>d<p>significantly less common in DF compared to UF and DHF, but no difference between UF and DHF.</p

Disease severity, virus serotype, secondary infection (2° infection), and hospitalization.

*<p>UDS = Unable to determine serotype, participants had IgM anti-DENV positive on S1 specimen or had seroconverted from IgM anti-DENV negative to positive between S1 and S2 specimens but dengue virus serotypes could not be identified from S1 [mosquitoe inoculation ( 2006) or RT-PCR (2007–9)].</p>**<p>DHF Grade 1, Grade 2, Grade 3.</p>***<p>193 hospitalized patients consisted of DHF 42/42 cases (100%), DF 119/142 cases (83.8%), and UF 32/210 cases (15.2%).</p

Physical findings in dengue infection [n/number observed (%)].

a<p>significantly less common in UF compared to DF and DHF, but no difference between DF and DHF.</p>b<p>significantly more common in DHF compared to DF and UF, and more common in DF compared to UF.</p