encyst

Because of its ability to encyst in extreme environmental conditions, the organism is difficult to kill.

They may be readily infective to some mammalian hosts or may encyst in a susceptible second intermediate host.

Eggs hatch in the alimentary tract and primary larvae subsequently invade the body cavity to encyst on the viscera, producing visceral linguatulosis, whereas ingested infective larvae attempt to migrate to the nasal passages, producing nasopharyngeal linguatulosis.

Upon death of the host fish, the larvae migrate from the intestines and penetrate and then encyst within muscle tissue.

Rediae then release free-swimming cercariae from the snail that encyst as metacercariae on aquatic vegetation, and if ingested by a cervid, will excyst and penetrate the intestine as juvenile flukes.

In an immuno competent individual the organism will encyst itself in the brain muscle and eye as a bradyzoite (Burney 1996).

The culprit is Bacillus anthracis, which can encyst in the ground for many years.

Typically, roundworms live in the small intestine, though their larvae may migrate and "encyst"--become walled off and inactive, sometimes for months or even years!

before the UVB exceeds the threshold or the chytrid fungus destroys our skin or trematodes further encyst in our limb buds or the meteor hits and the Earth is once more wrapped in a cloak of dust.

Eggs are ingested by the intermediate host (a variety of species of arthropods, mainly coprophagous beetles) and the larvae encyst within the tissues and develop to infectivity (L3) within two months.

In an accidental host infected with the parasite, the larvae migrate to ocular and brain tissue, encyst there and can cause listlessness, emaciation, loss of motor skills, coma, and ultimately death (Kazacos et al.

The larvae can encyst in various tissues, causing abdominal pain, vomiting, constipation, diarrhea, and a tender abdomen [1].