Threadworms are very common. Nearly half of all children under the age of ten and many adults have threadworms at some time often without realising as the infection usually causes no symptoms ...

Threadworms, which are a type of parasitic nematode, spend a lot of time crawling around on human skin, poking and prodding to find the best place for entry before burrowing in. But disrupting a ...

This is a preview. Log in through your library . Abstract Ninety percent of wild red grouse examined carried threadworms in their intenstinal caeca. Old birds had 30 times as many worms as young birds ...