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Schematic representation of the six known H. influenzae cap loci. Capsule nucleotide sequences and annotations were collected from genome assemblies representing each of the six serotypes. Shading indicates homologous regions between reference loci as determined by BLAST identity values shown in region II. Regions I and III are homologous across the entire sequence for all loci, with nucleotide identities of ≥87% and ≥90%, respectively.
