ArticleNpj viruses2024
Diagnosis and genomic characterization of the largest western equine encephalitis virus outbreak in Uruguay during 2023-2024.
Article in Npj viruses, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed.
- Epidemiologic, Entomologic, and Virologic Findings during Reemergence of Western Equine Encephalitis Virus, Argentina.Emerging infectious diseases · 2026Article
- Western Equine Encephalitis Virus in Blood Donors during Outbreak, Argentina, 2023-2024.Emerging infectious diseases · 2026Review
- Pathogens of the human central nervous system-the major viral pathogens.Journal of neurovirology · 2026Review
- Article
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Authors and funding
18 authors.
Funding
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Abstract
The Western equine encephalitis virus is transmitted between mosquitoes and wild birds. Mosquitoes spread the virus to horses and human populations, causing severe encephalitis and death. The most recent large outbreak occurred in South America from November 2023 to April 2024. We identified and genetically characterized Uruguayan strains during this outbreak to understand their evolutionary trends and rapid expansion. We obtained genomes from 15 strains using a novel multiplex PCR assay combined with next-generation Illumina sequencing. The phylogenetic analysis revealed that viruses from Uruguay and Brazil collected during the outbreak and an Argentine strain from 1958 share a common evolutionary origin and are distinct from North American strains. Phylogenetic and epidemiological data suggest that the outbreak originated in Argentina and spread to Uruguay and Brazil, likely by movements of infected birds. Genomic analysis also revealed mispairing in real-time PCR primers and probes that may affect official diagnostic protocols.
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