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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  ;  Tai-Soon Yong  ;  Duk-Young Min  ;  Han-Jong Rim  ;  Charles Kihamia  ;  Hyeong-Kyu Jeon 
Citation
 KOREAN JOURNAL OF PARASITOLOGY, Vol.49(4) : 399-403, 2011 
Journal Title
KOREAN JOURNAL OF PARASITOLOGY
ISSN
 0023-4001 
Issue Date
2011
Keywords
Taenia saginata ; Taenia solium ; Tanzania ; egg DNA ; multiplex PCR
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).
Files in This Item:
T201193888.pdf Download
DOI
10.3347/kjp.2011.49.4.399
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Tropica Medicine (열대의학교실) > 1. Journal Papers
Yonsei Authors
Yong, Tai Soon(용태순) ORCID logo https://orcid.org/0000-0002-3445-0769
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/95276
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