Yellow fever re-emergence in Tolima, Colombia 2024-25: an eco-epidemiological study.

ABSTRACT:

Background

Yellow fever virus (YFV) is transmitted by mosquitoes among humans and non-human primates (NHPs) in South America. The 2024-25 yellow fever (YF) outbreak was notable for its spread into new areas, including the department of Tolima in Colombia's Andean region. We investigated the eco-epidemiology of human and NHP YF cases to understand the patterns and drivers of the Tolima outbreak.

Methods

We collected spatiotemporal, sociodemographic, and mortality data on human YF cases in Tolima, as well as the locations of deceased NHPs with YF. We then conducted exploratory, descriptive, and spatial statistical analyses to identify risk factors and hotspots for YF. We then used inferential spatiotemporal modelling to compare ecological and sociodemographic drivers.

Findi

SUBMITTER: Judson SD 

PROVIDER: S-EPMC12870657 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature