The miracidia hatch in freshwater and infect snails first intermediate hosts. It is a parasitic trematode fluke or flatworm in the phylum platyhelminthes. It infects the livers of various mammals, including humans. The eggs are passed into the environment with the feces. The elimination of parasitic eggs in the excrements of both hosts was evaluated. The wall of the cyst of the metacercaria of the liver fluke fasciola hepatica l. Oct 20, 2014 the two species of trematodes that cause fascioliasis fasciola hepatica and fasciola gigantica are leafshaped worms, large enough to be visible to the naked eye adult f. In general, the disease caused by the infection of fasciola hepatica is referred to as fascioliasis. Fascioliasis due to fasciola hepatica and fasciola gigantica infection. Metacercariae of fasciola hepatica deriving from bovines were used in.
The disease caused by the fluke is called fascioliasis. When encysted metacercaria are swallowed by a human, they excyst in the lumen of the. A stable 2629 kda, coproantigen has been isolated and the monoclonal antibodies against this antigen are useful for the detection of the antigen in stools. Fasciola hepatica the liver fluke fasciola hepatica is a common fluke found in the liver and bile ducts of cattle, sheep, goat, pig, rabbit, dog etc. Fasciola hepatica fasciola hepatica, also known as the common liver fluke or sheep liver fluke, is a parasitic flatworm of the class trematoda, phylum platyhelminthes that infects the livers of various mammals, including humans. Fasciola fasciola hepatica e um verme achatado, trematodeo da familia dos fasciolideos, filo platyhelminthes, parasita dos canais biliares do boi, ovelha, cabra, porco e, raramente, do homem. However, it is commonly observed in developing countries. Genetic diversity and multiplicity of infection in fasciola gigantica. Dec 04, 20 fasciola hepatica, a parasitic flatworm of the class trematoda, phylum platyhelminthes that infects the livers of various mammals, including humans, is exceptionally rare in the united states. Physical inspection of the liver indicated that 302 of 2058 14. Fasciola hepatica in ruminants digestive system merck. The liver fluke also infects wild rodents, including the capybara. An assessment on the vectorial capacity of radix labiata and r.
Fascioliasis, revision clinicoepidemiologica y diagnostico. Density of infected livers with fasciola hepatica using the kernel analysis. In this article we will discuss about fasciola hepatica. Fasciola hepatica is a parasitic fluke that lives in the liver. I parassiti adulti, ermafroditi, vivono nei dotti biliari dei propri ospiti definitivi.
Fasciola parasites live as adult flukes in the bile duct and immature eggs go out through feces and grow in fresh. The incidence has been increasing since the year 1980. Fasciola hepatica simple english wikipedia, the free. The adult worms live in the bile ducts of the final hosts. Fascioliasis is found in all continents except antarctica, in over 70 countries, especially where there are sheep or cattle. Municipal level, and to improve monitoring it is essential to combine the data.
It is important to get an idea about the fasciola hepatica life cycle to determine the best treatment option. Follow me to a labeled images of fasciola hepatica. Oct 11, 2019 fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. Pdf fasciola hepatica is a parasite that is located in the liver of ruminants with. Fasciola hepatica can affect 46 species of wild and domestic animals as well as humans. Fasciola hepatica definition of fasciola hepatica by. Infection caused by fasciola hepatica with treatment. Fasciola hepatica, fasciolose, perdas economicas tema central. The zoonoses are particularly endemic in sheepraising countries and are also endemic in iran. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The definite hosts of fasciola hepatica are sheeps, cows, and humans. It has been classified as a neglected tropical disease.
The egg the eggs of fasciola hepatica are operculated and average 140. Fascioliasis is a worldwide zoonotic infection with fasciola hepatica and fasciola gigantica. Eggs of fasciola hepatica have been found in mummies, showing that human infection was occurring at least as early as pharaonic times farag. Fascioliasis is a parasitic infection typically caused by fasciola hepatica, which is also known as the common liver fluke or the sheep liver fluke. Each of the precursors of these layers is synthesised in a distinct kind of cystogenic cell in the cercaria, while it is still within. The disease is a plantborne trematode zoonosis, and is classified as a neglected tropical disease ntd. The trematodes fasciola hepatica also known as the common liver fluke or the sheep liver fluke and fasciola gigantica are large liver flukes f. Fasciola gigantica liver flukes are responsible for over 3 billion us dollars of. In this article we will discuss about the infection caused by fasciola hepatica and its treatment. The life cycle of fasciola hepatica starts when a female lays eggs in the liver of an infected human. It causes damage to the liver tissues producing liver rot in all sheep breeding areas of the world. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke, is a parasitic trematode fluke or flatworm, a type of helminth of the class trematoda, phylum platyhelminthes. Medicina veterinaria abstract the fasciolose is a disease of great veterinary importance for causing high economical losses, due to the condemnation of great number of livers and carcasses of animals in the slaughterhouses.
It affects humans, but its main host is ruminants such as cattle and sheep. Fasciola hepatica study guide by equuspuella includes 10 questions covering vocabulary, terms and more. The intermediate host is a hermaphroditic lymnaeid snail major sources of human. It is known as the common liver fluke and causes a disease called fascioliasis. Fasciola hepatica the liver fluke zoology for ias, ifos.
Este helminto e conhecido popularmente como baratinha do figado. Sequence analysis of the its1 and nad1 genes of liver flukes from 17 animals revealed that 11 animals were infected with f. Fasciolosis is a parasitic worm infection caused by the common liver fluke fasciola hepatica as well as by fasciola gigantica. Here we combine a modified ollerenshaw risk index with the. Dna multigene characterization of fasciola hepatica and lymnaea. A related parasite, fasciola gigantica, also can infect people. Fasciola hepatica vive come parassita nei dotti biliari degli erbivori, il suo ciclo e legato allacqua ed alla presenza del suo ospite intermedio. Epidemiology and impact of fasciola hepatica exposure in high. Predicting impacts of climate change on fasciola hepatica risk. Quizlet flashcards, activities and games help you improve your grades. However, its infection on the primary host sheep is of considerable economic importance. Il parassita adulto depone uova che vengono portate dalla bile nellintestino e raggiungono lesterno con le feci necessariamente in ambiente acquatico.
491 1376 469 802 853 36 1509 601 659 474 1145 1619 349 1276 1590 486 1088 875 577 939 1615 152 471 978 1146 653 1020 118 1592 1508 713 289 667 1311 227 449 1450 97 592 256 586 138 921 624 520 1040 602 474 626