In " Trichinella spiralis, " the roundworm that causes trichinosis, a host has both reproductive adults in its digestive tract and immature juveniles in its muscles, and is therefore considered both an intermediate host and a definitive host.
12.
The following year, " Trichinella spiralis ", a parasite which kills animals and can infect humans, was found in devils and minor panic broke out before scientists assured the public that 30 % of devils had it but that they could not transmit it to other species.
13.
He swept the board of prizes in 1835, and again in 1836; in his first winter session, he discovered the pathogen for trichinosis, a parasitic disease caused by " Trichinella spiralis ", a minute roundworm that infests the muscles of the human body, and which is usually acquired by eating infected pork.
14.
Several coccidian species of the genera " Isospora " and " Eimeria " are also known to infect them . and " Crenosoma vulpis ", the latter two infect their lungs . " Capillaria plica " infect the fox's bladder . " Trichinella spiralis " rarely affects them.
15.
The species " Trichinella spiralis ", commonly known as the'trichina worm', occurs in rats, pigs, and humans, and is responsible for the disease trichinosis . " Baylisascaris " usually infests wild animals, but can be deadly to humans, as well . " Dirofilaria immitis " are known for causing heartworm disease by inhabiting the hearts, arteries, and lungs of dogs and some cats . " Haemonchus contortus " is one of the most abundant infectious agents in sheep around the world, causing great economic damage to sheep.
