H5N2 Influenza A Virus Genomes: Codon Bias and Epidemiological Metadata n=12,765

This dataset comprises 12,765 complete H5N2 influenza A virus sequences from NCBI, processed via local bioinformatics pipelines. Sequences were validated as full-length, aligned using MAFFT (--parttree --retree 1), and trimmed. Per-sequence codon usage analysis includes ENc, CAI (human/avian), GC3, RSCU, CPB, and PR2.Metadata on collection year and country were parsed from headers. Delivered with aligned FASTA, codon metrics CSV, QC summaries, and visualizations of temporal, geographic, and evolutionary trends.Data processing curation by [e-mail] now shared via:https://figshare.com/s/7d382b07bfe6796198f4