A Case of Diphyllobothrium nihonkaiense Infection as Confirmed by Mitochondrial COX1 Gene Sequence Analysis |
| |
Authors: | Sang Hyun Park Keeseon S. Eom Min Sun Park Oh Kyoung Kwon Hyo Sun Kim Jai Hoon Yoon |
| |
Affiliation: | 1.Department of Internal Medicine, Chuncheon Sacred Heart Hospital, Chuncheon 200-704, Korea.;2.Department of Parasitology, School of Medicine, Chungbuk National University, Cheongju 361-763, Korea. |
| |
Abstract: | Diphyllobothrium nihonkaiense has been reported in Korea as Diphyllobothrium latum because of their close morphologic resemblance. We have identified a human case of D. nihonkaiense infection using the mitochondrial cytochrome c oxidase subunit I (cox1) gene sequence analysis. On 18 February 2012, a patient who had consumed raw fish a month earlier visited our outpatient clinic with a long tapeworm parasite excreted in the feces. The body of the segmented worm was 2 m long and divided into the scolex (head) and proglottids. It was morphologically close to D. nihonkaiense and D. latum. The cox1 gene analysis showed 99.4% (340/342 bp) homology with D. nihonkaiense but only 91.8% (314/342 bp) homology with D. latum. The present study suggested that the Diphyllobothrium spp. infection in Korea should be analyzed with specific DNA sequence for an accurate species identification. |
| |
Keywords: | Diphyllobothrium nihonkaiense Diphyllobothrium latum DNA sequence cox1 diagnosis |
|
|