Fig. 2

Cluster and Outlier Analysis of arboviral IgM positivity based on proportional positivity by recruitment municipality. A) DENV IgM+, B) ZIKV IgM+, C) DENV and/or ZIKV IgM+, D) DENV and ZIKV IgM+. High-High clusters represent areas with spatially significantly higher proportion of cases per municipality compared to surrounding municipalities. Low-Low clusters represent areas with spatially significantly lower proportion of cases per municipality compared to surrounding municipalities. High-Low Outliers indicate municipalities with comparatively higher flavivirus positive prevalence from our participant population surrounded by municipalities of lower prevalence. Low-High Outliers indicate areas of lower flavivirus positive prevalence from our study population surrounded by municipalities with comparatively higher prevalence