[2] Numerous mammal species, as well as birds and crocodiles,[1][2] can harbor the parasite worldwide, but the sylvatic cycle is mainly maintained by wild carnivores.
[8] Three cases of human trichinellosis due to T. britovi were reported in 2015 in the Southeast of France resulting from consumption of raw pork sausages (figatelli) prepared in Corsica.
[9] Several outbreaks of human trichinellosis happened in the South of France or in the Piedmont region in Italy from 1993 to 2022, generally caused by the consumption of undercooked wild boar meat.
[11] The hosts that affect infections in humans include the following: pigs, horses, wild boars, dogs, walruses, foxes, moose, and bears.
[6][11] Its life cycle begins with the ingestion of an infected animal's meat, or muscle tissue where the larvae of the parasite were encysted.
[11]Within a few weeks, the host's immune response with kill all of the adult worms in the body and the larvae will begin to penetrate the muscle tissue/cells.
[11][6] After a certain period of time, this could be week, months, or even years, the cysts will undergo a calcification process if the larvae not ingested by another animal.
[6] When the larvae penetrate into the muscle cell and start encysting, it can cause periorbital and facial edema, conjunctivitis, fever, myalgias, splinter hemorrhages, rashes, and peripheral eosinophilia.