ArticleVirology journal2026
A highly sensitive amplicon sequencing workflow for genomic surveillance of Usutu virus.
Article in Virology journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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15 authors.
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Abstract
Genomic surveillance of Usutu virus (USUV) in blood donors is hampered by extremely low viral loads, which usually prevent reliable genome sequencing. We developed and validated a tiled amplicon-based sequencing protocol optimized for low-titer samples. Serial dilutions of four phylogenetically distinct USUV lineages showed ≥ 95% genome recovery above 100 RNA copies/µL and 65-98% recovery between 3 and 100 copies/µL. We applied the method to 27 USUV-positive blood donors from Germany (median 1.70 copies/µL), achieving lineage assignment in 74% and ≥ 70% genome coverage in 63% of samples. This approach enables routine genomic surveillance of USUV in blood donors.
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