The basic diagnosis is examination of a stool sample to find the parasite eggs.

This is because hatching order is predictable in parasitized Coots-host eggs will reliably hatch before parasite eggs.

The researchers are studying whether shellfish, a favorite food of otters, concentrate the parasite eggs through filter feeding, adding to the risk.

Food should be covered to limit contamination with dust-borne parasite eggs.

They are studied to determine the diet and health of the people who produced them through the analysis of seeds, small bones, and parasite eggs found inside.

The cycle begins as arthropods become intermediate hosts by ingesting the parasite eggs.

Captain Britain gathered together the plants necessary to create the antidote that would kill the parasite eggs.

In that case, hosts will inevitably mistake one of their own eggs for a parasite egg on occasion and eject it.

In any case, hosts will sometimes damage their own eggs while trying to eject a parasite egg.

Others include the McMaster method, which uses a special two-chamber slide that allows parasite eggs to be more clearly visible and easily counted.