Fig. 2

Immuno-epidemiological characteristics of dengue infections reporting across the Philippines between 2014 and 2018. A Age distribution of the primary and post-primary dengue infections. B Temporal patterns in reporting primary and post-primary dengue infections. C Temporal patterns in reporting DENV serotypes among active dengue infections. D Clinical manifestations of the primary and post-primary dengue infections. E Age-stratified clinical manifestations of primary dengue infections. F Age-stratified clinical manifestations of post-primary dengue infections. G Odds ratio [95% CI] for post-primary dengue infections to present with severe disease compared to primary dengue infections. H Odds ratios [95% CI] for primary dengue infections to present with severe disease by age in years compared to those under 2 years. I Odds ratios [95% CI] for post-primary dengue infections to present with severe disease by age in years compared to those under 2 years. 1° primary dengue infections. 2° Post-primary dengue infections