• Parasites, Hosts and Diseases
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• v.57 no.3
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• pp.313-318
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• 2019

In recent years, the taeniasis has been rarely reported in the Republic of Korea (Korea). But in this study, we intend to report 4 taeniasis cases caused by Taenia saginata during a 5-month period (February to June 2018) at a unversity hospital in Gwangju, Korea. Worm samples (proglottids) discharged from all cases were identified by phenotypic and molecular diagnostics. Mitochondrial cytochrome c oxidase subunit I sequences showed 99.4-99.9% identity with T. saginata but, differed by 4% from T. asiatica and by 7% from T. multiceps, respectively. We found that tapeworms in 2 cases (Cases 2 and 3) yielded exactly the same sequences between them, which differed from those in Cases 1 and 4, suggesting intra-species variation in tapeworms. These taeniasis cases by T. saginata infection in this study, which occurred within a limited time period and region, suggest the possibility of a mini-outbreak. This study highlights the need for further epidemiological investigation of potentially overlooked cases of T. saginata infection in Korea.

• Parasites, Hosts and Diseases
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• v.52 no.2
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• pp.125-129
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• 2014

Several reports on taeniasis and cysticercosis in Vietnam show that they are distributed in over 50 of 63 provinces. In some endemic areas, the prevalence of taeniasis was 0.2-12.0% and that of cysticercosis was 1.0-7.2%. The major symptoms of taeniasis included fidgeted anus, proglottids moving out of the anus, and proglottids in the feces. Clinical manifestations of cysticercosis in humans included subcutaneous nodules, epileptic seizures, severe headach, impaired vision, and memory loss. The species identification of Taenia in Vietnam included Taenia asiatica, Taenia saginata, and Taenia solium based on combined morphology and molecular methods. Only T. solium caused cysticercosis in humans. Praziquantel was chosen for treatment of taeniasis and albendazole for treatment of cysticercosis. The infection rate of cysticercus cellulosae in pigs was 0.04% at Hanoi slaughterhouses, 0.03-0.31% at provincial slaughterhouses in the north, and 0.9% in provincial slaughterhouses in the southern region of Vietnam. The infection rate of cysticercus bovis in cattle was 0.03-2.17% at Hanoi slaughterhouses. Risk factors investigated with regard to transmission of Taenia suggested that consumption of raw meat (eating raw meat 4.5-74.3%), inadequate or absent meat inspection and control, poor sanitation in some endemic areas, and use of untreated human waste as a fertilizer for crops may play important roles in Vietnam, although this remains to be validated.

• Journal of Life Science
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• v.20 no.6
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• pp.955-959
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• 2010

Differential diagnosis of the taeniid proglottids between Taenia asiatica and T. sagniata is a daunting task due to their close morphological similarity. However, to correctly diagnose them on time is important in managing infected patients, as well as for reducing serious complications such as cysticercosis. Currently, DNA-based methods for the dissection of genomic information of parasites are being employed to make accurate and rapid diagnoses in the field of parasitology. In this study, multiplex PCR was established and exploited to identify exact species of taeniid adult worms recovered from Korean people. To discriminate one from the other other, primers-Ta4978F, Ts5058F, Tso7421F, and Rev7915- were used for the multiplex PCR, which provided swift and precise identification of the taeniid worms being observed. Also,having instituted PCR methodology, we ascertained that easiness would be achieved to reassess and re-evaluate Korean endemic data on human taeniid cestodes.