What diseases are performed by the simplest parasites of the internal environment?

There are many diseases caused by parasites, we will list the most common of them:
1. Giardiasis: it is caused by the simplest lamblia. The route of infection is through inadequately processed food and through dirty water
2. Amoebiosis: it is caused by dysentery amoeba. It can also be infected by alimentary means.
3. Toxoplasmosis: the causative agent is toxoplasma, which can be infected by contact with pets, by the bite of arthropods and through food (alimentary)