Description
English: Trichinella spiralis larvae in pressed bear meat, partially digested with pepsin.
Source http://www.dpd.cdc.gov/dpdx/HTML/ImageLibrary/Trichinellosis_il.htm
Author DPDx Image LibrarySource: https://commons.wikimedia.org/wiki/File:Trichinella_larv1_DPDx.JPG

Trichinella spiralis is an ovoviviparous nematode parasite, occurring in rodents, pigs, horses, bears, and humans, and is responsible for the disease trichinosis. It is sometimes referred to as the "pork worm" due to it being typically encountered in undercooked pork products. Order: Trichocephalida, Superfamily: Trichinelloidea, Family: Trichinellidae, Genus: Trichinella, Species: Trichinella spiralis (Owen, 1835).