Infectious Disease Compendium



A nematode, includes T. britovi, T. nativa, T. pseudospiralis, T. spiralis and others.

Epidemiologic Risks

Eating infected, poorly cooked, meat.

So cook your pork to at least 145.

T. spiralis: Worldwide Pigs, rats, horses, bears, foxes. They hunt and eat wild boar all over the US and Europe. And get trichinella (PubMed) (PubMed).

There was a large outbreak in Northern California from eating raw locally grown boar (PubMed). I much as I love pork, I can't see ever eating pig sushi.

T. nativa : Arctic, subarctic bears (PubMed), horses. Eat a black bear, get Trichinella (PubMed) with extra added thrombotic complications. In Alaska eating undercooked Walrus. Walrus sushi? Goo goo goo joob.

T. britovi: Temperate, subarctic boar, horses, foxes.

T. pseudospiralis: Arctic Birds, omnivorous mammals, subarctic bears.

T. nelsoni : Southern Africa hyenas and tropical Africa lions, panthers.


Diarrhea, abdominal discomfort and vomiting severity depending on the worm burden. Then systemic dissemination causes fever, periorbital edema and myositis with pain, swelling, and weakness that often moves from the head down.


Thiabendazole 25 mg/kg/day for 1 week for intestinal disease > albendazole 400 mg/day for 5 days. The myositis is treated symptomatically.

Post exposure prophylaxis in Germany was effective for preventing illness.   "Mebendazole may be particularly suitable for the use in PEP as (a) it is poorly absorbed in the gastrointestinal tract, leading to a high concentration in the lumen [29], and (b) it was shown to be highly effective against intestinal stages of the parasite. Albendazole, on the other hand, may be more useful should the larvae have already migrated and have become established in the muscles (PubMed).


(:mmmmmmmm rat:).

Last Update: 08/12/18.