Table 1.
RDT samples analyzed by location and year. The number of flavivirus-positive samples and DENV positive samples are shown for each location.
Fig 1.
Location of RDT samples and DENV-3-positive RDT samples.
A total of 1,884 RDTs were collected across southern Haiti between 2021 and 2023. Sampled departments are shaded beige while departments not sampled are shaded grey. Locations with no DENV-3 detected are shown as a black circle while locations positive for DENV-3 are shown as yellow boxes. The shapefile for the base layer of this map was obtained from https://geodata.ucdavis.edu/gadm/gadm4.1/shp/gadm41_HTI_shp.zip. License information available at https://gadm.org/license.html.
Fig 2.
Sequence analysis of the DENV-3 sequences from Haiti.
The near-complete DENV-3 sequences (n = 10) were aligned with 431 DENV-3 sequences from around the world. A phylogenetic tree (Jukes-Cantor, Neighbor Joining) was generated based off this alignment, showing a North/South America cluster, and Asian cluster, and a mixed region cluster. The sequences from Haiti (insert) group with this mixed region cluster.