Trichinosis pathogens are round worms of the Trichinellidae family, including two species - Trichinella spiralis with three varieties (T. Spiralis, T. S. Nativa, T. S. Nelsoni) and Trichinella pseudospiralis. In the pathology of the population of Ukraine, the most important are the T. S. Spiralis and G. S. Nativa. Trichinella s. Spiralis is ubiquitous, parasitic in domestic pigs, pathogenic to humans.