Fasciola hepatica can affect 46 species of wild and domestic animals as well as humans. A parasite called the liver fluke which causes fascioliasis or liver rot in ruminants and many other mammals, including people. Morphological diversity of the two species was observed in linear, ratios, and areas measurements. Sep 16, 2012 morphology adult fluke flat leaf like body 2030mm long 815mm widedr. Jan 09, 2014 fasciola hepatica is commonly known as the sheep liver fluke and is a common parasite in herbivores. It is commonly known as liver fluke and is an endoparasite in the bile duct of sheeps liver.
To evaluate the effects of lead in the morphology and viability of fasciola. This study was conducted to investigate the life history, morphology, and maturation of larval stages and adult. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Fasciola hepatica and fasciola gigantica habitually coexist as parasites of cattle bos taurus and water buffalo bubalus bubalis, and despite variation in their morphometry, their species. Morphological and molecular discrimination of fasciola. These flatworms form seven different developmental stages. Apr 20, 2017 fasciola hepatica is an endoparasite of sheep. Fasciola hepatica bahiya basheer 2nd year mbbs student 2. Follow me to a labeled images of fasciola hepatica. Molecular and morphological characterization of fasciola. Jun 11, 2014 sampling and morphological examination. Fasciola hepatica commonly called sheep liver fluke. Fascioliasis due to fasciola hepatica and fasciola gigantica infection. Man may become infested with this fluke by eating uncooked vegetables.
Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. Fasciola hepatica sheep liver fluke phylum platyhelminthe class trematoda fasciola gigantica very rarely infects humans. Quizlet flashcards, activities and games help you improve your grades. Pdf morphology and viability of adult fasciola gigantica giant. Morphological and molecular discrimination of fasciola species. Study on the morphology of fasciola gigantica and economic losses due to fasciolosis in berau, east kalimantan history article. Pdf study on the morphology of fasciola gigantica and. Winner of the standing ovation award for best powerpoint templates from presentations magazine.
Eggs of fasciola hepatica have been found in mummies, showing that human infection was occurring at least as early as pharaonic times farag. Identification and differentiation of fasciola hepatica and. This species, fasciola nyanzae, was found in the bile ducts of the liver, and in most instances the specimens were somewhat macerated owing to the length of time that had. 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. Fascioliasis, caused by the liver flukes of the genus fasciola, is one of the most important food and waterborne parasitic zoonoses.
Fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. 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. The large adult worms block the bile ducts and induce severe morphological and physiological malfunctions of the liver of. Fasciola hepatica an overview sciencedirect topics. Fasciola hepatica is a trematode or fluke also known as the sheep liver fluke all trematodes are parasitic all trematodes have a phase of their life cycle in snail or other molluscan host. The life cycle, transmission, morphology, clinical presentation, and treatment of the f. 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 is commonly known as the sheep liver fluke and is a common parasite in herbivores. Liver and intrahepatic bile ducts nontumor fasciola hepatica liver fluke. Fasciola hepatica study guide by equuspuella includes 10 questions covering vocabulary, terms and more. Fasciola hepatica is a trematode parasite in the same family as schistosomes and shares crossreactive antigens with schistosomes.
With cosmopolitan distribution, human infections have been reported in many parts of the world. Full text pdf international journal of veterinary science. It is leafshaped, pointed at the back posteriorly, and wide in the front anteriorly. Fasciola hepatica is most frequently found in countries where sheep raising is common, such as china, taiwan, india, indonesia and other parts of asia. Fasciola, commonly known as the liver fluke, is a genus of parasitic trematodes. Fasciola hepatica fasciola gigantica fasciolopsis buski echinostoma species geographic distribution. Fasciola hepatica, also known as the common liver fluke or sheep liver fluke. The results of these experiments indicate that the 4th and 5th weeks of infection represent a critical. Fascioliasis due to fasciola hepatica and fasciola gigantica. Morphological and molecular discrimination of fasciola species isolated from domestic ruminants of. Eating contaminated vegetation such as watercress is a common mode of infection. Habitata parasite of herbivorous anim als sheep,goat and cattle, living in. Fasciola hepatica this species causes hepatic fibrosis in ruminants and humans parasite morphology. Fasciola hepatica is cosmopolitan in distribution being found throughout all regions of the world, both temperate and tropical.
Pdf the trematodes of the genus fasciola the liver flukes are. Leiper described a new species belonging to the genus fasciola from specimens which he collected from hippopotami at the murchison falls, on the victoria nile in uganda, in the summer of 1907. Fasciola species introduction fasciola, fasciolopsis and echinostoma species are trematodes which parasitise a variety of vertebrates. 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. 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. Fasciola hepatica study guide by mendi15 includes 43 questions covering vocabulary, terms and more. Fasciola hepatica and fasciola gigantica are two main species of fasciola which infect both human and animals. Fasciola hepatica is one of the largest flukes of the world, reaching a length of 30 mm and a width of mm fasciola gigantica, though, is even bigger and can reach up to 75 mm.
The below mentioned article provides an overview on fasciola hepatica liver fluke. On the morphology and life history of fasciola nyanzae leiper, 1910 from the hippopotamus volume 35 issue s1 j. Thomas and leuokart experimentally demonstrated the changes of liver fluke in a pond snail. It is known as the common liver fluke and causes a disease called fascioliasis.
Fasciola hepatica morphology home fasciola hepatica morphology 20200425 20200425 tagged liver trematodes cdc dpdx diagnostic procedures stool specimens. In this article we will discuss about fasciola hepatica. Jun 24, 2018 fasciola hepatica eggs morphology, fasciola hepatica eggs, fasciola hepatica,parasitology,parasitology eggs morphology,parasitology eggs,parasitology egg identification,intestinal nematodes eggs. The trematodes fasciola hepatica also known as the common liver fluke or the sheep liver fluke and fasciola gigantica are large liver flukes f. Pdf morphological and molecular discrimination of fasciola. Eggs are difficult, if not impossible, to differentiate from those of fasciola hepatica. Additional notes on the growth of fasciola hepatica l. Oct 11, 2019 fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. 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. Histology of the reproductive organs and differential effects of triclabendazole on drugsensitive and drugresistant fluke isolates and on flukes from selected field cases.
The disease caused by the fluke is called fascioliasis also kn. Fasciola hepatica and fasciola gigantica, as well as hybrids between the two species. In previous studies, promising phenotypic identification scores were obtained using. Fasciola hepatica eggs morphology,fasciola hepatica eggs,fasciola hepatica,parasitology,parasitology eggs morphology,parasitology eggs,parasitology egg identification,intestinal nematodes eggs. They are hermaphroditic and their distinguishing characteristics are shown in the following table. The life history of the liverfluke fasciola hepatica. On the morphology and life history of fasciola nyanzae leiper. Fasciola gigantica parasitizes lymnaeid snails, which are intermediate hosts, and cows, sheep and other ruminants, which are definitive hosts. Economically important infections are seen in cattle, sheep, alpacas, and llamas in three forms. Simple morphological criteria are unreliable for their specific identification. Fasciola hepatica definition of fasciola hepatica by.
Fascioliasis due to fasciola hepatica and fasciola. Molecular and morphological characterization of fasciola spp. Asv 251 study guide 2014 baeza instructor baeza at. Life cycle of fasciola hepatica of humans and of numerous plant feeding.
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. Fasciola hepatica the liver fluke zoology for ias, ifos. Fasciola hepatica is a parasitic fluke that lives in the liver. Fasciola parasites live as adult flukes in the bile duct and immature eggs go out through feces and grow in fresh. Both species infect the liver tissue of a wide variety of mammals, including humans, in a condition known as fascioliasis. Based on the morphometric examination, the flukes belonged to f. Diagnosis of species often depends upon clinical signs, travel history andor recovery of adults. Ppt fasciola hepatica powerpoint presentation free to. It is important to get an idea about the fasciola hepatica life cycle to determine the best treatment option. Accurate morphological differentiation between the liver fluke species fasciola hepatica and fasciola gigantica is difficult. 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. The egg the eggs of fasciola hepatica are operculated and average 140.
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