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Morphologic and genetic identification of Taenia tapeworms in Tanzania and DNA genotyping of Taenia solium

Authors
 Keeseon S. Eom ; Jong-Yil Chai ; Hyeong-Kyu Jeon ; Charles Kihamia ; Han-Jong Rim ; Duk-Young Min ; Tai-Soon Yong 
Citation
 Korean Journal of Parasitology, Vol.49(4) : 399~403, 2011 
Journal Title
 Korean Journal of Parasitology 
ISSN
 0023-4001 
Issue Date
2011
Abstract
Species identification of Taenia tapeworms was performed using morphologic observations and multiplex PCR and DNA sequencing of the mitochondrial cox1 gene. In 2008 and 2009, a total of 1,057 fecal samples were collected from residents of Kongwa district of Dodoma region, Tanzania, and examined microscopically for helminth eggs and proglottids. Of these, 4 Taenia egg positive cases were identified, and the eggs were subjected to DNA analysis. Several proglottids of Taenia solium were recovered from 1 of the 4 cases. This established that the species were T. solium (n = 1) and T. saginata (n = 3). One further T. solium specimen was found among 128 fecal samples collected from Mbulu district in Arusha, and this had an intact strobila with the scolex. Phylegenetic analysis of the mtDNA cox1 gene sequences of these 5 isolates showed that T. saginata was basal to the T. solium clade. The mitochondrial cox1 gene sequences of 3 of these Tanzanian isolates showed 99% similarity to T. saginata, and the other 2 isolates showed 100% similarity to T. solium. The present study has shown that Taenia tapeworms are endemic in Kongwa district of Tanzania, as well as in a previously identified Mbulu district. Both T. solium isolates were found to have an "African/Latin American" genotype (cox1).
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/95276
DOI
10.3347/kjp.2011.49.4.399
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Environmental Medical Biology
Yonsei Authors
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