Human and animal cystic echinococcosis in Konya, Turkey: molecular identification and the first report of E. equinus from human host in Turkey

Parasitol Res. 2021 Feb;120(2):563-568. doi: 10.1007/s00436-021-07050-w. Epub 2021 Jan 19.

Abstract

Cystic echinococcosis is a neglected, zoonotic disease in Turkey. The disease is commonly seen in rural areas where the local population is in close contact with livestock and dogs. This research aimed to molecularly identify of hydatid cysts in cattle and human isolates from Konya, Turkey. Following sample collection, direct microscopy was performed. After direct examination, total DNA was extracted, and positive PCR products of cox 1 mitochondrial gene (~ 875 bp) were sequenced. A total of 83 hydatid cysts (cattle n = 57 and human n = 26), 82 were identified as Echinococcus granulosus sensu stricto (G1-G3 genotypes), and one human isolate was characterized as Echinococcus equinus (G4 genotype). Fertility rates of cysts belonging to cattle for liver and lung cysts were 93.3% and 80%, respectively. Out of 26 human originated isolates, 18 (69.2%) of cysts were found to be fertile. To the best of our knowledge, this is the first report of E. equinus from human host in Turkey.

Keywords: Cattle; Echinocccus granulosus sensu lato; Echinococcus equinus; Human cystic echinococcosis; Turkey.

MeSH terms

  • Animals
  • Cattle
  • Cattle Diseases / epidemiology
  • Cattle Diseases / parasitology*
  • Cattle Diseases / transmission
  • Cyclooxygenase 1 / genetics
  • Dog Diseases / epidemiology
  • Dog Diseases / parasitology*
  • Dog Diseases / transmission
  • Dogs
  • Echinococcosis / epidemiology
  • Echinococcosis / parasitology*
  • Echinococcosis / transmission
  • Echinococcus / genetics*
  • Echinococcus / isolation & purification
  • Echinococcus / physiology
  • Echinococcus granulosus / genetics
  • Echinococcus granulosus / isolation & purification
  • Echinococcus granulosus / physiology
  • Genotype
  • Helminth Proteins / genetics
  • Humans
  • Liver / parasitology
  • Lung / parasitology
  • Mitochondrial Proteins / genetics
  • Polymerase Chain Reaction
  • Turkey / epidemiology
  • Zoonoses

Substances

  • Helminth Proteins
  • Mitochondrial Proteins
  • Cyclooxygenase 1