Sympatric Distribution of Three Human Taenia Tapeworms Collected between 1935 and 2005 in Korea

Taeniasis has been known as one of the prevalent parasitic infections in Korea. Until recently, Taenia saginata had long been considered a dominant, and widely distributed species but epidemiological profiles of human Taenia species in Korea still remain unclear. In order to better understand distri...

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Bibliographic Details
Published in:Korean journal of parasitology 2008-12, Vol.46 (4), p.235-241
Main Authors: Jeon, H.K. (Chungbuk National University College of Medicine, Chongju, Republic of Korea), Kim, K.H. (Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea), Chai, J.Y. (Seoul National University Medical Research Center, Seoul, Republic of Korea), Yang, H.J. (Ewha Womans University, Seoul, Republic of Korea), Rim, H.J. (Korea University College of Medicine, Seoul, Republic of Korea), Eom, K.S. (Chungbuk National University College of Medicine, Chongju, Republic of Korea), E-mail: kseom@chungbuk.ac.kr
Format: Article
Language:English
Subjects:
Animals
Base Sequence
Cestode Infections - epidemiology
Cestode Infections - parasitology
Cyclooxygenase 1 - genetics
Cyclooxygenase 1 - metabolism
DNA, Ribosomal Spacer - genetics
Gene Expression Regulation
Humans
Korea - epidemiology
Mitochondria - enzymology
molecular identification
Molecular Sequence Data
Original
Phylogeny
sympatric distribution
T. asiatica
Taenia - classification
Taenia - genetics
TAENIA SAGINATA
TAENIA SOLIUM
Time Factors
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Summary:Taeniasis has been known as one of the prevalent parasitic infections in Korea. Until recently, Taenia saginata had long been considered a dominant, and widely distributed species but epidemiological profiles of human Taenia species in Korea still remain unclear. In order to better understand distribution patterns of human Taenia tapeworms in Korea, partial nucleotide sequences of mitochondrial cox1 and ITS2 (internal transcribed spacer 2) were determined, along with morphological examinations, on 68 Taenia specimens obtained from university museum collections deposited since 1935. Genomic DNA was extracted from formalin-preserved specimens. Phylogenetic relationships among the genotypes (cox1 haplotype) detected in this study were inferred using the neighbor-joining method as a tree building method. Morphological and genetic analyses identified 3 specimens as T. solium, 51 specimens as T. asiatica, and 14 specimens as T. saginata. Our results indicate that all 3 Taenia tapeworms are sympatrically distributed in Korea with T. asiatica dominating over T. saginata and T. solium.
ISSN:0023-4001
1738-0006
DOI:10.3347/kjp.2008.46.4.235