Current challenges and implications for dengue, chikungunya and Zika seroprevalence studies worldwide: A scoping review - Fig 3

<p>A) Distribution of arboviruses seroprevalence studies worldwide. B) Distribution of dengue seroprevalence studies number worldwide, 1989–2017, N = 149. C) Distribution of chikungunya seroprevalence studies number worldwide, 1989–2017, N = 54. D) Distribution of Zika seroprevalence studies number worldwide, 2007–2017, N = 10.