| phylogenetic relationships of rat lungworm, angiostrongylus cantonensis, isolated from different geographical regions revealed widespread multiple lineages. | we conducted a pilot survey of genetic variation of a. cantonensis using small subunit (ssu) ribosomal (r) rna and mitochondrial cytochrome c oxidase subunit i (coxi) gene sequences. two distinct ssu genotypes (g1 and g2) were identified among 17 individual a. cantonensis worms from 17 different geographical localities in japan, mainland china, taiwan, and thailand. the partial coxi sequences were determined for 83 worms from 18 different geographical localities from japan, mainland china, taiwa ... | 2012 | 22387862 |