Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae. If you ingest certain tapeworm eggs, they can migrate outside your intestines and form larval cysts in body tissues and organs (invasive infection). If you ingest tapeworm larvae, however, they develop into adult tapeworms in your intestines.
Tapeworm Echinococcus multilocularis. Once the infection becomes successfully established, AHD is one of the most lethal helminthic diseases in humans. The extrapolated prevalence in switzerland, is found to be 14,032 for two times of 9,174,762 population estimation used.