Which species cause hydatid disease (echinococcosis)?

Updated: May 07, 2019
  • Author: Imad S Dandan, MD; Chief Editor: BS Anand, MD  more...
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Human echinococcosis is a zoonotic infection caused by the tapeworm of the genus Echinococcus. Of the four known species of Echinococcus, three are of medical importance in humans. These are E granulosus, causing cystic echinococcosis (CE); E multilocularis, causing alveolar echinococcosis (AE); and E vogeli. E granulosus is the most common of the three; cDNA encoding calmodulin, a calcium sensor protein, (rEgCaM) may play an essential role in the biologic function of E granulosus as a calcium binding protein. [2]  E multilocularis is rare but is the most virulent, and E vogeli is the most rare.

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