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Updated: Jan 31, 2026

In Vitro Analysis of Myd88-mediated Cellular Immune Response to West Nile Virus Mutant Strain Infection
Published on: November 27, 2014
First detection of West Nile virus in Belgium through wild bird surveillance, Belgium, 2025
Charlotte Sohier1, Floris C Breman1, Muriel Vervaeke2
1Sciensano, Belgian Health Institute, Brussels, Belgium.
Abstract:
In August 2025, West Nile virus (WNV) was detected for the first time in Belgium through a monitoring programme in wild birds, with three corvids testing positive by RT-qPCR. In September and October, four additional infected birds were identified. Whole genome sequencing classified the strain as WNV lineage 2, consistent with strains circulating elsewhere in Europe. These detections provide evidence of local WNV circulation with important implications for animal and public health preparedness and surveillance during the 2026 mosquito season.
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