Figure 2From: Variation in dengue virus plaque reduction neutralization testing: systematic review and pooled analysis Dengue virus (DENV) exposure timeline of PRNT titers included in this review. Articles above the timeline reported transitions between exposure states while articles below reported single states. 1°, 2°, and 3° abbreviate primary, secondary, and tertiary exposures; “n” indicates the numbers of individuals who contributed titers that met inclusion and exclusion criteria; “Days Post” indicates the number of days between DENV exposure and serum collection.Back to article page