Doctors didn’t know why the woman wasn’t getting better after being given medication for anemia and a bacterial stomach ...

Journal of Medical Case Reports A medical scan showed live hookworms in a woman’s stomach, shocking doctors who said she didn’t have the telltale gastrointestinal symptoms of the parasitic ...

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 ...