Right: Fossaria bulamoides, a snail host for F. Center: Adult Fasciola hepatica fluke stained with carmine (30mm x 13mm). hepatica eggs are broadly ellipsoidal, operculated, and measure 130–150 μm by 60–90 µm. Images: Left: Fasciola hepatica egg in an unstained wet mount (400x magnification). Fasciola infection is both treatable and preventable. The pathology typically is most pronounced in the bile ducts and liver. As an adult, the fluke has a vertebrate host. Look at the life cycle of the liver fluke in Figure below. Usually, more than one type of host is required to complete the parasite’s life cycle. Tapeworms live in the host’s digestive system. The young worms move through the intestinal wall, the abdominal cavity, and the liver tissue, into the bile ducts, where they develop into mature adult flukes that produce eggs. Flukes live in the host’s circulatory system or liver. In some cases, an infected individual may never feel. People usually become infected by eating raw watercress or other water plants contaminated with immature parasite larvae. People can get infected with liver flukes after swallowing the parasite, most often by eating raw vegetables or drinking contaminated water. Fascioliasis is found in all continents except Antarctica, in over 70 countries, especially where there are sheep or cattle. Fascioliasis is a parasitic infection typically caused by Fasciola hepatica, which is also known as “the common liver fluke” or “the sheep liver fluke.” A related parasite, Fasciola gigantica, also can infect people.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |