As nouns the difference between echinococcus and echinococcosis

is that echinococcus is a parasite of humans and of many domestic and wild animals, the larval stage of Taenia echinococcus, that forms compound cysts or tumours (called hydatid cysts) in various organs, but especially in the liver and lungs while echinococcosis is a potentially fatal parasitic disease of animals and humans, caused by the Echinococcus tapeworm.