Korean J Parasitol.  2019 Jun;57(3):313-318. 10.3347/kjp.2019.57.3.313.

Four Taeniasis saginata Cases Diagnosed at a University Hospital in Korea

Affiliations
  • 1Department of Parasitology and Tropical Medicine, Chonnam National University Medical School, Gwangju 61469, Korea. parasite.woni@jnu.ac.kr
  • 2Department of Laboratory Medicine, Chonnam National University Hospital, Gwangju 61469, Korea.
  • 3Department of Infectious Diseases, Chonnam National University Medical School, Gwangju 61469, Korea.
  • 4Korea Association of Health Promotion, Seoul 07549, and Department of Parasitology and Tropical Medicine, Seoul National University College of Medicine, Seoul 03080, Korea.
  • 5Department of Parasitology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea. sungshik@jnu.ac.kr

Abstract

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.

Keyword

Taenia saginata; intra-species variation; Korea

MeSH Terms

Cestoda
Electron Transport Complex IV
Gwangju
Korea*
Pathology, Molecular
Republic of Korea
Taenia saginata
Taeniasis*
Electron Transport Complex IV
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