Molecular detection of Diphyllobothrium nihonkaiense in humans, China

Emerg Infect Dis. 2014 Feb;20(2):315-8. doi: 10.3201/eid2002.121889.

Abstract

The cause of diphyllobothriosis in 5 persons in Harbin and Shanghai, China, during 2008-2011, initially attributed to the tapeworm Diphyllobothrium latum, was confirmed as D. nihonkaiense by using molecular analysis of expelled proglottids. The use of morphologic characteristics alone to identify this organism was inadequate and led to misidentification of the species.

Keywords: China; cestodiasis; diphyllobothriosis; diphyllobothrium; diphyllobothrium infection; latum; nihonkaiense; parasite; plerocoercoid; proglottid; strobila; tapeworm.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • China / epidemiology
  • DNA, Helminth / classification
  • DNA, Helminth / genetics*
  • Diphyllobothriasis / diagnosis
  • Diphyllobothriasis / epidemiology
  • Diphyllobothriasis / parasitology*
  • Diphyllobothriasis / pathology
  • Diphyllobothrium / classification
  • Diphyllobothrium / genetics*
  • Diphyllobothrium / isolation & purification
  • Electron Transport Complex IV / classification
  • Electron Transport Complex IV / genetics*
  • Female
  • Humans
  • Male
  • Molecular Typing
  • Phylogeny
  • Sequence Analysis, DNA

Substances

  • DNA, Helminth
  • Electron Transport Complex IV