It is important to get an idea about the fasciola hepatica life cycle to determine the best treatment option. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke. Sep 16, 2012 morphology adult fluke flat leaf like body 2030mm long 815mm widedr. C this article has been rated as cclass on the projects quality scale.
Adult fasciola hepatica has a flat body with a characteristic leaf. Eggs are difficult, if not impossible, to differentiate from those of fasciola hepatica. Thomas and leuokart experimentally demonstrated the changes of liver fluke in a pond snail. Diagnosis of species often depends upon clinical signs, travel history andor recovery of adults. The trematodes of the genus fasciola are the common liver flukes of a range species of animals and have a global geographical distribution. Fasciola hepatica study guide by equuspuella includes 10 questions covering vocabulary, terms and more. It is important that the optimal ev purification method is realised in order to obtain high quality evs to have confidence in understanding ev biology and function. Fasciola hepatica fasciola gigantica fasciolopsis buski echinostoma species geographic distribution.
In this article we will discuss about fasciola hepatica. Fasciola hepatica sheep liver fluke phylum platyhelminthe class trematoda fasciola gigantica very rarely infects humans. The life cycle of fasciola hepatica is complex and it is completed in two different hosts as it is a digenetic parasite. 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. The below mentioned article provides an overview on fasciola hepatica liver fluke.
Fasciola hepatica sheep liver fluke this parasite is found most commonly in the liver of animals such as cows and sheep, however it can reside in other hosts such as horses or humans. They are hermaphroditic and their distinguishing characteristics are shown in the following table. Fascioliasis due to fasciola hepatica and fasciola gigantica. Morphological and molecular discrimination of fasciola.
With cosmopolitan distribution, human infections have been reported in many parts of the world. Fasciola hepatica is within the scope of wikiproject animals, an attempt to better organize information in articles related to animals and zoology. Jan 09, 2014 fasciola hepatica is commonly known as the sheep liver fluke and is a common parasite in herbivores. Fasciola hepatica bahiya basheer 2nd year mbbs student 2. Fascioliasis due to fasciola hepatica and fasciola gigantica infection. Eggs of fasciola hepatica have been found in mummies, showing that human infection was occurring at least as early as pharaonic times farag. Whereas the intermediate or secondary host is a snail in which all the larval stages are developed.
At the anterior end, distinct conical projection is observed. Molecular and morphological characterization of fasciola. Quizlet flashcards, activities and games help you improve your grades. This animation is part of invertebrate zoology laboratory course scbi208 department of biology faculty of science, mahidol university. Fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. 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 hepatica commonly called sheep liver fluke. Adw doesnt cover all species in the world, nor does it include all the latest scientific information about organisms we describe. The life cycle, transmission, morphology, clinical presentation, and treatment of the f. Cycle of events in fasciola hepatica the life cycle of fasciola hepatica starts when a female lays eggs in the liver of an infected human. There are two species of fasciola that infect cattle. The disease caused by the fluke is called fascioliasis also kn. Fascioliasis is a parasitic infection typically caused by fasciola hepatica, which is also known as the common liver fluke or the sheep liver fluke. Species distribution can overlap as it is governed by the presence of snail intermediate host species that are integral to.
Fasciola hepatica study guide by mendi15 includes 43 questions covering vocabulary, terms and more. It has been classified as a neglected tropical disease. It is dorsoventrally flattened, oval in shape like a leaf and faint brownish in colour. Fasciola hepatica can affect 46 species of wild and domestic animals as well as humans. The egg the eggs of fasciola hepatica are operculated and average 140. Apr 20, 2017 fasciola hepatica is an endoparasite of sheep. In sheep, the migratory phase of the parasite produces severe parenchymal disease of the liver for which the parasite is called sheep liver fluke and the disease is known as liver rot. 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.
Additional notes on the growth of fasciola hepatica l. Ppt fasciola hepatica powerpoint presentation free to. A free powerpoint ppt presentation displayed as a flash slide show on id. The animal diversity web is an educational resource written largely by and for college students. Adult worms are large leaflike, 20 to 30 mm in length. Liver and intrahepatic bile ducts nontumor fasciola hepatica liver fluke. Developmental regulation of fasciola hepatica cathepsin peptidases.
It is known as the common liver fluke and causes a disease called fascioliasis. Fasciola gigantica mainly found in tropical climates such as subsaharan africa. Study on the morphology of fasciola gigantica and economic losses due to fasciolosis in berau, east kalimantan history article. Jun 24, 2018 fasciola hepatica eggs morphology, fasciola hepatica eggs, fasciola hepatica,parasitology,parasitology eggs morphology,parasitology eggs,parasitology egg identification,intestinal nematodes eggs. 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. Fascioliasis is found in all continents except antarctica, in over 70 countries, especially where there are sheep or cattle. Fasciola hepatica occurs in the liver of a definitive host and its lifecycle is indirect. Initial tissue invasion and subsequent migration within the host requires the concerted action of specific cathepsin b and l peptidases with distinct, yet.
Fasciola hepatica is a trematode parasite in the same family as schistosomes and shares crossreactive antigens with schistosomes. They can generally be distinguished on the basic of. In this article we will discuss about the structure of liver fluke fasciola hepatica with the help of a diagram. Fasciola hepatica is most frequently found in countries where sheep raising is common, such as china, taiwan, india, indonesia and other parts of asia. Molecular and morphological characterization of fasciola spp. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Fasciola hepatica is one of the largest flukes of the world.
The life history of the liverfluke fasciola hepatica. Morphological and molecular discrimination of fasciola species isolated from domestic ruminants of. Infection with fasciola hepatica clinical microbiology. Fasciola gigantica causes outbreaks in tropical areas of southern asia, southeast asia, and africa. 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. Pronunciation of fasciola hepatica with 1 audio pronunciation, 4 synonyms, 1 meaning, 2 translations, 1 sentence and more for fasciola hepatica.
The primary host is sheep in which the adult liver flukes live. It infects the livers of various mammals, including humans. Fasciola hepatica morphology home fasciola hepatica morphology 20200425 20200425 tagged liver trematodes cdc dpdx diagnostic procedures stool specimens revision of helminthology authorstream history fasciola hepatica wikipedia, the free encyclopedia fasciola hepatica. Fasciola hepatica is a parasitic fluke that lives in the liver. Fasciola hepatica the common names are the sheep liver fluke and the common liver fluke. Fascioliasis, caused by the liver flukes of the genus fasciola, is one of the most important food and waterborne parasitic zoonoses. In this article we will discuss about the external morphology of liver flukes. A related parasite, fasciola gigantica, also can infect people. The results of these experiments indicate that the 4th and 5th weeks of infection represent a critical. Fasciola hepatica simple english wikipedia, the free.
A total of 86 adult flukes of the genus fasciola were isolated from the naturallyinfected livers of the slaughtered water buffaloes n23 and sheep n63 at the abattoir of urmia city, north west iran. In this study, the zoonotic parasite, fasciola hepatica, was cultured as a case study to investigate the importance of ev purification from helminth culture media. It causes damage to the liver tissues producing liver rot in all sheep breeding areas of the world. During intraocular surgery of a 44yearold woman from guilan province in north iran, a small flat parasite was removed from the anterior chamber angle of the left eye. The adult fluke is large, flat, brownish and leafshaped, and measures c. Pdf study on the morphology of fasciola gigantica and. Fasciola species introduction fasciola, fasciolopsis and echinostoma species are trematodes which parasitise a variety of vertebrates. In fact, on one hand adult fluke exhibits certain adaptive features and on the other a number of adaptive features may also be accounted from the various stages of its life history. Fasciola parasites live as adult flukes in the bile duct and immature eggs go out through feces and grow in fresh. It is a parasitic trematode fluke or flatworm in the phylum platyhelminthes. The life cycle of fasciola hepatica starts when a female lays eggs in the liver of an infected human. Fasciola hepatica and fasciola gigantica are two main species of fasciola which infect both human and animals. Fasciola hepatica is commonly known as the sheep liver fluke and is a common parasite in herbivores.
Follow me to a labeled images of fasciola hepatica. Fasciola hepatica definition of fasciola hepatica by. Habitata parasite of herbivorous anim als sheep,goat and cattle, living in. The disease caused by the fluke is called fascioliasis. It is commonly known as liver fluke and is an endoparasite in the bile duct of sheeps liver. Fasciola hepatica is a trematode liver fluke that infects primarily sheep, goats and cattle.
Fasciola hepatica an overview sciencedirect topics. Pdf fasciola hepatica in the human eye abdolhossein. The adult worm has a very characteristic leaf shape with the anterior end being broader than the posterior end and an anterior coneshaped projection. Man may become infested with this fluke by eating uncooked vegetables. According to morphological characterisation of the parasite, it was identified as. Fascioliasis, an infection due to the food and waterborne trematodes fasciola hepatica and fasciola gigantica, is among the most neglected of the neglected tropical diseases. Oct 11, 2019 fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. Histology of the reproductive organs and differential effects of triclabendazole on drugsensitive and drugresistant fluke isolates and on flukes from selected field cases robert hanna section of parasitology, disease surveillance and investigation branch, veterinary sciences division. Fasciola hepatica adalah salah satu trematoda hati yang bersifat hermaprodit yang dapat menimbulkan penyakit fascioliasis. Fasciola hepatica the liver fluke zoology for ias, ifos. The importance of extracellular vesicle purification for.