Search results
Results from the WOW.Com Content Network
Fasciolopsis buski is commonly called the giant intestinal fluke, because it is an exceptionally large parasitic fluke, and the largest known to parasitise humans. Its size is variable and a mature specimen might be as little as 2 cm long, but the body may grow to a length of 7.5 cm and a width of 2.5 cm.
Microscopic identification of eggs, or more rarely of the adult flukes, in the stool or vomitus is the basis of specific diagnosis. The eggs are indistinguishable from those of the very closely related Fasciola hepatica liver fluke, but that is largely inconsequential since treatment is essentially identical for both. [citation needed]
Lung flukes require three different hosts in order to complete their life cycle. The first intermediate host is a snail, the second intermediate host is a crab or crayfish, and the definitive host for lung flukes is an animal or human host. [4] Intestinal flukes inhabit the epithelium of the small intestine.
After the penetration of the intestine, flukes migrate within the abdominal cavity and penetrate the liver or other organs. F. hepatica has a strong predilection for the tissues of the liver. [17] Occasionally, ectopic locations of flukes such as the lungs, diaphragm, intestinal wall, kidneys, and subcutaneous tissue can occur.
Fasciolopsiasis – intestinal fluke [10] Fasciolopsis buski: intestines stool or vomitus (microscope) East Asia – 10 million people ingestion of infested water plants or water (intermediate host:amphibic snails) Metagonimiasis – intestinal fluke Metagonimus yokogawai: stool Siberia, Manchuria, Balkan states, Israel, Spain
Fasciola hepatica, a species of liver flukes, has a higher incidence rate in children and females, with more cases of lung fluke and intestinal trematodiases in children. [5] Cases of liver and lung fluke trematodiasis are frequent due to the length of time the trematode can live in host organisms, and increased chances of reinfection. [9]
Schistosoma mansoni is a water-borne parasite of humans, and belongs to the group of blood flukes (Schistosoma). The adult lives in the blood vessels (mesenteric veins) near the human intestine. It causes intestinal schistosomiasis (similar to S. japonicum, S. mekongi, S. guineensis, and S. intercalatum). Clinical symptoms are caused by the eggs.
Echinostoma is a genus of trematodes (flukes), which can infect both humans and other animals.These intestinal flukes have a three-host life cycle with snails or other aquatic organisms as intermediate hosts, [2] and a variety of animals, including humans, as their definitive hosts.