Bovine tapeworm causes in humans changes in the digestive organs, blood composition

Bovine tapeworm causes in humans changes in the digestive organs, blood composition, activity of the nervous system, etc. How can this be explained?

1) The tapeworm, along with its parasitic lifestyle, has a reduced digestive system. This means that in order to live, he needs to absorb finished products. For this, in the anterior section of the worm there are devices that help to anchor in the intestinal wall. Because of this, only a small percentage of nutrients reach the tissues and organs of a person.
2) The waste products of the bovine tapeworm are toxic, its poisons are easily absorbed by the intestines and spread throughout the body. Thus, the body is poisoned, which affects the activity of the body’s systems.