Echinococcus multilocularis is found around the world in many arctic and temperate areas of the northern hemisphere. The life cycle of this parasite is principally sylvatic and dependent on ...

The life cycle of Echinococcus granulosus is somewhat complex: The "adult" form of the worm lives in the intestines of dogs and can grow to be 6 millimeters (0.2 inches) long, according to the CDC.

Echinococcus granulosus ... we detected early signs of the establishment of a local transmission cycle. This means that the parasite has been introduced and is spreading slowly in groups of ...