A generalized lineage nomenclature for viral genomic epidemiology.

A generalized lineage nomenclature framework for viral genomic epidemiology designates 21 chikungunya virus lineages across 8 founding lineages.

• Why it matters: Effective international communication of viral diversity is crucial for outbreak response, but existing systems may not keep pace with rapid sequence generation, limiting their usefulness.
• What they did: The authors adapted the Pango lineage principles into a hierarchical framework based on phylogenetic clusters, applying it to chikungunya virus and defining 21 lineages from 8 founding lineages.
• The result: This generalized system offers a scalable, adaptable foundation for genomic surveillance of various viruses, including emerging outbreaks and endemic pathogens, enhancing global outbreak tracking.