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. 2017 Feb;23(2):252–257. doi: 10.3201/eid2302.160822

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Phylogenetic tree obtained from neighbor-joining analysis of cytochrome oxidase 1 gene amplicons (296 bp) of Ancylostoma ceylanicum hookworms sourced from 10 humans in the eastern Solomon Islands (black circles) compared with reference isolates from Malaysia, China, and Cambodia, sourced from GenBank (accession numbers shown). Scale bar indicates nucleotide substitutions per site.