Trichinella spiralis

Definition

Trichinella spiralis is a parasitic nematode responsible for the disease trichinosis. This helminth primarily infects mammals, including humans, through the consumption of undercooked meat containing larvae.

5 Must Know Facts For Your Next Test

1. Trichinella spiralis has a direct life cycle involving one host where larvae encyst in muscle tissue.
2. Humans typically acquire Trichinella spiralis infection by eating raw or undercooked pork or wild game.
3. Symptoms of trichinosis include gastrointestinal distress, muscle pain, fever, and swelling around the eyes.
4. Diagnosis is often confirmed by serological tests or muscle biopsy showing encysted larvae.
5. Preventive measures include thoroughly cooking meat to an internal temperature of at least 160°F (71°C) to kill larvae.

Related terms

Nematode: A type of roundworm belonging to the phylum Nematoda.

Trichinosis: A disease caused by infection with Trichinella spiralis resulting in muscle pain and fever.

Encysted Larvae: Larval stage that forms cysts within host muscle tissue, typical of some parasitic infections like trichinosis.