Eggs drop onto food and are eaten. Parasitic intestinal worms include roundworms, pinworms, hookworms, and tapeworms. These worms infect humans and can cause various illnesses. Symptoms range from ...

A 3-year-old boy in Indonesia was misdiagnosed with constipation — until he vomited worms. Surgeons found his intestines ...

In this short film Dr Michael Mosley investigates hookworms - large parasites which invade our immune system. The worms have co-evolved with us to secrete chemicals which alter our immune system ...