Observed prevalence by age (with 95% CIs) and model-predicted values.

<p>Blue line: Model 1 (constant force of infection); Red line: Model 2 (different forces of infection above and below 6 years).</p

Ratio of dengue infections to notified cases by age in Colombo Municipal Council, 2009.

<p>Blue line: Model 1 (constant force of infection); Red line: Model 2 (different forces of infection above and below 6 years).</p

Force of dengue infection estimates and 95% CIs by JE vaccination status.

<p>Model 1: constant force of infection; Model 2: different forces of infection above and below 6 years. <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0002259#pntd-0002259-g002" target="_blank">Figure 2</a> footnote: * Estimates from a model adjusting for JE vaccination status.</p

Number and percentage of children positive for flavivirus antibodies, Colombo, Sri Lanka, 2008–9.

<p>Number and percentage of children positive for flavivirus antibodies, Colombo, Sri Lanka, 2008–9.</p

Average medical costs ± standard error of the mean per pediatric and adult case at secondary care public hospitals in Colombo district, 2012 (all costs are in US$).

<p>Average medical costs ± standard error of the mean per pediatric and adult case at secondary care public hospitals in Colombo district, 2012 (all costs are in US$).</p

Total cost of dengue hospitalizations ± standard error of the mean in Colombo district, Sri Lanka, 2012 (all costs are in US$).

<p>Total cost of dengue hospitalizations ± standard error of the mean in Colombo district, Sri Lanka, 2012 (all costs are in US$).</p

Composition of dengue hospitalization costs ± standard error of the mean in the public health sector in Colombo district, Sri Lanka, 2012 (all costs are in US$).

<p>Composition of dengue hospitalization costs ± standard error of the mean in the public health sector in Colombo district, Sri Lanka, 2012 (all costs are in US$).</p

Number of reported dengue cases and average monthly rainfall in Colombo district, Sri Lanka, 2012.

<p>Number of reported dengue cases and average monthly rainfall in Colombo district, Sri Lanka, 2012.</p

Map of Medical Officer of Health and Divisional Secretary areas in Colombo district, Sri Lanka, with public health agencies responsible for dengue control activities.

<p>Map of Medical Officer of Health and Divisional Secretary areas in Colombo district, Sri Lanka, with public health agencies responsible for dengue control activities.</p

Cost composition of dengue control activities in Colombo District, Sri Lanka, 2012 (all costs are in US$).

<p>Cost composition of dengue control activities in Colombo District, Sri Lanka, 2012 (all costs are in US$).</p