Trichinellosis, also called trichinosis, is a disease that people can get by eating raw or undercooked meat from animals infected with the microscopic parasite Trichinella.

Image: Center: Trichinella larva in muscle tissue from an Alaskan bear. Image photographed at 200x magnification. L/R: Pigs, feral hogs, cougars and black bears can all harbor Trichinella infection, although successful trichinae control programs by the U.S. pork industry have nearly eliminated the disease in domestic swine.
Credit: L to R: USDA, NASA/KSC, DPDx, U.S. Fish & Wildlife Service.