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K-mer feature gain by subtype. Subtypes that demonstrated the highest-gain k-mer features were I-C (“GCGAC”), I-E (“TCCCC”), I-F (“CTGCC”), I-G (“CAATG”), II-A (“AAAAC”), and III-A (“CCGTC”). High-gain k-mers are distinct to individual subtypes. Only subtypes with >50 validation examples are listed for clarity.
