Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. Fasciola hepatica is a parasitic fluke that lives in the liver. Fasciola hepatica sheep liver fluke phylum platyhelminthe class trematoda fasciola gigantica very rarely infects humans. Fascioliasis is found in all continents except antarctica, in over 70 countries, especially where there are sheep or cattle. The disease caused by the fluke is called fasciolosis or fascioliasis, which is a type of helminthiasis and has been classified as a neglected. The liver fluke fasciola hepatica is a trematode parasite with a worldwide distribution and is the cause of important production losses in the dairy industry. Diagnosis of triclabendazole resistance in fasciola hepatica.
The disease is a plantborne trematode zoonosis, and is classified as a neglected tropical disease ntd. Fasciola hepatica is an endoparasite that lives in the. 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. Ppt fasciola hepatica powerpoint presentation free to. In this article we will discuss about fasciola hepatica. It is known as the common liver fluke and causes a disease called fascioliasis. Fasciola hepatica is a liver parasite of mammals and it results in poor welfare outcomes and economic losses in ruminants. Fasciola hepatica infection is widespread across eastern new south wales where the annual mean rainfall is about.
The liver fluke fasciola hepatica is a cosmopolitan parasitic flatworm causing zoonotic disease in humans and tremendous economic losses by infecting livestock 1. The clinical and economic importance of fasciolosis has been recognised for centuries, yet diagnostic tests available for cattle are far from perfect. 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. Serological techniques increase sensitivity at all stages of the liver fluke infection.
Fasciola hepatica simple english wikipedia, the free. Comparison of four commercially available elisa kits for. Fascioliasis is a parasitic disease caused by fasciola hepatica f. Fasciola hepatica is associated with the failure to detect. A free powerpoint ppt presentation displayed as a flash slide show on id. While faecal egg count is the test most commonly used for diagnosis, it does not indicate presence of migrating immature stages. Multiple choice questions on phylum platyhelminthes mcq. The life cycle, transmission, morphology, clinical presentation, and treatment of the f. Pdf histopathology of fasciola hepatica infection in. First report of prehispanic fasciola hepatica from south. Foodborne trematodiases are an emerging public health problem in southeast asia and latin america, and are caused by the following flukes. Test evaluation has mainly been carried out using gold standard approaches or under experimental settings, the limitations of which are well known. The assay has been validated using naturally infected populations and is the first test enabling the identification of herds and individuals that. 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.
The validated and accurate fas2elisa test a currently used routine serological test for fasciola infection in peru was used to examine the existence of the circulating f. To complete its life cycle, this trematode needs an intermediate host, represented by a mollusk from lymnaeidae family. The disease is a wellknown veterinary problem of worldwide distribution. The search term was adapted to the predominate language of the database. Negative serology of fasciola hepatica infection in. The fascioliasis is a parasitic infection caused by tremadotes of fasciola genre and the more frequent species is fasciola hepatica which is distributed in all continents and to infecting many mammals, including the man. In the absence of commercially available vaccines to control fasciolosis, increasing reports of resistance to current. Fascioliasis is a parasitic infection typically caused by fasciola hepatica, which is also known as the common liver fluke or the sheep liver fluke. Fasciolosis is a parasitic worm infection caused by the common liver fluke fasciola hepatica as well as by fasciola gigantica. The worldwide occurring common liver fluke fasciola hepatica can infect humans and animals and leads to considerable illness and economic loss annually. In this study, we found some evidence of an association between fasciola infection with liver fibrosis and cirrhosis, but little between fasciola and cancer.
The intermediate host in the life cycle of taenia saginata is. Dengan memahami siklus hidup cacing hati, diharapkan akan mampu memberikan pemahaman yang holistik akan preferensi upaya preventif yang akan diambil sebagai penanggulangan. Association of fasciola hepatica infection with liver. It affects approximately 50 million people worldwide and over 180 million are at risk of infection in both developed and underdeveloped. Fascioliasis is a major parasitic disease caused by the digenetic trematodes fasciola hepatica and fasciola gigantica. Emerging foodborne trematodiasis keiser j, utzinger j. Human fascioliasis is a trematode zoonosis of interest in public health. The trematodes fasciola hepatica also known as the common liver fluke or the sheep liver fluke and fasciola gigantica are large liver flukes f. The aim of this study was to determine the genetic diversity of f. Epidemiology and impact of fasciola hepatica exposure in. Distribution is worldwide and is dependent upon lymnaeid snails as. The disease caused by the fluke is called fascioliasis.
Clonorchis sinensis, fasciola gigantica, fasciola hepatica, opisthorchis felineus, opisthorchis viverrini, and paragonimus spp. It causes damage to the liver tissues producing liver rot in all sheep breeding areas of the world. Helminth parasites typically have large genomes with high levels of genetic polymorphism, and the existence of triploidy in some populations of f hepatica confers. The results of these experiments indicate that the 4th and 5th weeks of. Immature fasciola eggs are discharged in the biliary ducts and in the stool 1.
Fascioliasis due to fasciola hepatica and fasciola gigantica infection. It is a parasitic trematode fluke or flatworm in the phylum platyhelminthes it infects the livers of various mammals, including humans. Conjugated lectins used for screening histological sections of adult fasciola hepatica andor western blots of adult f. A related parasite, fasciola gigantica, also can infect people. In total, 31 adult flukes isolated from cattle from various regions in austria were investigated for their cytochrome oxidase. Evaluation of the performance of five diagnostic tests for. In this study, a bayesian no gold standard approach was used to estimate the. Fasciola hepatica is a trematode parasite in the same family as schistosomes and shares crossreactive antigens with schistosomes. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Fasciola hepatica is a parasite introduced in america from europe, being considered of concern for public health and animal production, especially.
The life cycle of fasciola hepatica starts when a female lays eggs in the liver of an infected human. It affects humans, but its main host is ruminants such as cattle and sheep. Diagnosis of fasciola hepatica in livestock chasing the fluke or its impact. Globally, it has been estimated that approximately 56 million people are infected by these parasites. It has been classified as a neglected tropical disease. Economically important infections are seen in cattle, sheep, alpacas, and llamas in three forms. The genus name is derived from the latin word fasciola, meaning fascia or band. Eggs become embryonated in water 2, eggs release miracidia 3, which invade a suitable snail intermediate host 4, including the genera galba, fossaria and pseudosuccinea. Heather sedlacek, in the laboratory rabbit, guinea pig, hamster, and other rodents, 2012. It infects the livers of various mammals, including humans. Siklus hidup fasciola hepatica cacing hati javaurora. Zoonotic trematode infections are an area of the neglected tropical diseases that have become of major interest to global and public health due to their associated morbidity. Fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control.
Multiple choice questions on phylum platyhelminthes. Additional notes on the growth of fasciola hepatica l. The grass contaminated with feces is the main source of transmission, with snails acting as an essential part of the biological cycle. Fasciola hepatica is the major species in temperate regions, while f. Fasciola hepatica pdf animal diseases epidemiology. The fasciola hepatica is a parasite from the class trematoda of the order digenea, which maintains a wide distribution worldwide. Fasciola hepatica is a parasite of herbivorous mammals and humans. Fasciola hepatica an overview sciencedirect topics. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Fasciola hepatica definition of fasciola hepatica by. Fasciola hepatica has enormous biotic potential, involving sexual, hermaphroditic, or parthenogenic reproduction in the final mammalian host and clonal asexual multiplication in intermediate molluscan hosts. The aim of this observational study was to assess the prevalence of exposure to f. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke.
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