The Guinea worm grows to three feet long and it lives inside its victims.
"Wrapping a guinea worm on a stick was an actual medical practice," he said.
The Guinea worm, for example, gets under the skin of the feet and legs of people living in tropical countries.
Preventing people with emerging Guinea worms from entering water sources used for drinking.
The word can also be used about parasites causing large scale sickness and death, such as Guinea worm.
"And so she had four Guinea worms emerging simultaneously."
It is commonly used for parasites too, but only when they cause large scale sickness or death, such as the Guinea worm.
Lake fish were infested with guinea worm at the time of Stanley's expedition.
He has also been engaged in guinea worm and polio eradication.
Guinea worm is no longer endemic in either location.