Ascaris Roundworms
Like tapeworms, the Ascaris roundworms are often ingested and are responsible for killing approximately 2,700 a year. The reason they’re deadlier than a typical tapeworm is that they don’t just stay in the intestinal tract. They actually travel into other organs like the heart, the lungs, and the liver. Once there, they disrupt these vital organs’ normal functions. Unfortunately, about one-sixth of the human population is host to this parasitic infection and they’re completely unaware of it until it’s too late.