ArticleThe Journal of general virology2025
Genetic characterization of equine arteritis virus associated with outbreaks in the UK, 2019.
Article in The Journal of general virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Equine arteritis virus (EAV) is the causative agent of equine viral arteritis, a notifiable respiratory and reproductive disease of equids that causes significant losses to the equine industry. This study presents a comprehensive analysis of two EAV outbreaks in the UK in 2019, combining virus isolation, sequencing and phylogenetic analysis to provide a holistic understanding of EAV dynamics in these outbreaks. Genetic characterization revealed that all outbreak strains were similar to viruses detected in the UK and Europe from 2004 to 2011, belonging to phylogroup D and clustering in two groups as expected based on epidemiological profiling. Bayesian phylogenetic analysis indicated the direction of transmission. The 2019 EAV strains showed maximum variability in glycoprotein (GP) 3, followed by GP2, non-structural protein 2, GP4 and GP5, with one strain displaying a unique truncation in GP4 at position 149, a feature not previously identified in arteriviruses. Polymorphisms in the CXCL16 gene have been implicated in differential susceptibility to the establishment of long-term carrier states of EAV in stallions. Genotypic analysis of the CXCL16 gene revealed that one horse possessed the homozygous genotype associated with resistance to persistent infection. In contrast, the remaining four horses exhibited the heterozygous genotype, which has been linked to an increased risk of developing a long-term carrier state and contributing to ongoing viral transmission. All infected horses exhibited the presence of neutralizing antibodies in their serum. This study underscores the importance of early detection of silent infections to reduce the spread and prevent clinical outbreaks.
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