Skip to main content
Dryad

Detection and genetic characterization of arboviruses and other viruses from mosquitoes collected in Southeastern and Central Senegal, October 2022

DIALLO, Diawo1; Sene, Ousseynou1; Ngom, Déthiè1; Khoulé, Aliou1; Faye, Elisabeth Thérèse1; Dieng, Idrissa1; Ndione, Marie Henriette Dior1; Faye, Oumar1; Simon-Lorière, Etienne2; Diagne, Moussa Moise1; Dialllo, Mawlouth1; Sakuntabhai, Anavaj2; Fall, Gamou1

Published Aug 13, 2025 on Dryad. https://doi.org/10.5061/dryad.3n5tb2rwf

Data files

Aug 13, 2025 version files 95.58 KB

Click names to download individual files

Abstract

Mosquito-associated virus distribution and genetic data are incomplete in Senegal. This study updates information on virus diversity, distribution, and phylogenetic relationships through entomological and molecular surveillance. Mosquitoes were collected in October 2022 from 10 districts in Senegal, identified morphologically, and tested using qRT-PCR. Positive samples were sequenced for genetic characterisation.

A total of 42 virus isolates belonging to 7 viruses (Bagaza virus (BAGV), Barkedji virus, Sindbis virus 5SINV), Usutu virus (USUV), Dezidougou virus, Densovirus, and Pestivirus A (PESVA)) were detected in 6 mosquito species (Mansonia uniformis, Culex neavei, Anopheles coustani, Cx. cinereus, Aedes aegypti, and Ae. vexans). Most detections (92.9%) occurred in mosquitoes from ponds. BAGV and SINV were recorded for the first time in southeastern Senegal, and PESVA was detected in field-collected mosquitoes for the first time. Phylogenetic analyses in the associated article, revealed PESVA clustering with strains from Asia and Egypt, BAGV with strains from Senegal and Spain, USUV with a Senegalese strain, and SINV with strains from Spain and Kenya.

This dataset documents new geographic records and vector associations for several viruses in Senegal, providing baseline information for arbovirus surveillance and risk assessment.