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Genomic characterization of chikungunya virus during the large 2025 outbreak in Sri Lanka reveals emergence of a distinct Indian Ocean lineage strain

2025-05-23

Abstract excerpt

Chikungunya virus (CHIKV) has reemerged globally, with large outbreaks reported in multiple regions in 2025. Sri Lanka experienced a major outbreak after nearly two decades of minimal transmission. We aimed to characterize the genomic features of CHIKV responsible for this outbreak and compare them with historical and global strains. Acute febrile patients presenting between April and September 2025 were screened...

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Literature Corpus work: f08ba970-d8eb-575b-a7f0-62984b42d1e2
DOI: 10.1101/2025.05.23.25328206

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