The tumor-like parasites can also spread to the lungs, brain, heart, bone, and other organs. In humans, the infection is insidious, with an asymptomatic incubation period of between 5 and 15 years.

Parasites live in and feed on human blood, tissues, and intestines. As they multiply and lay eggs, they can harm your health. Parasites pick up infections like malaria, toxoplasmosis, and ...