Stephen J. Schueler, M.D.

Overview Incidence Symptoms Evaluation Treatment specialist Home Care warning signs Prevention Outlook Complications Underlying Cause Transmission

Trichinella Infection Underlying Cause

Trichinosis is caused by the parasite, Trichinella spiralis.

Sources of trichinosis include:

  • Eating undercooked, contaminated pork
  • Eating undercooked, contaminated wild game

The meat contains cysts:
  • Cysts hatch within the human intestinal tract after exposure to stomach acid.
  • Cysts produce adult roundworms that produce larvae.
  • Larvae migrate through the intestinal wall and into the bloodstream.
  • Larvae form cysts in muscle and other tissues.
  • Adult worms eventually die and pass in the stool.

Continue to Trichinella Infection Transmission

Last Updated: Aug 13, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Trichinella Infection References
  1. Nelson M, Wright TL, Pierce A, Krogwold RA. A common-source outbreak of trichinosis from consumption of bear meat. J Environ Health. 2003 May;65(9):16-9, 24. [12762120]
  2. Taratuto AL, Venturiello SM. Trichinosis. Brain Pathol. 1997 Jan;7(1):663-72. [9034572]
  3. Watt G, Saisorn S, Jongsakul K, Sakolvaree Y, Chaicumpa W. Blinded, placebo-controlled trial of antiparasitic drugs for trichinosis myositis. J Infect Dis. 2000 Jul;182(1):371-4. [10882628]
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