These animals become infected by eating metacercariae encysted on. The disease progresses through four distinct phases. Ogni adulto, una volta depositato saldamente nel fegato, puo produrre fino a 25. Fasciola hepatica is found on every continent with nearly 180 million people at risk and an estimated 2. Fascioliasis is mainly caused by the trematode fasciola hepatica liver fluke. Its life cycle is completed in two hosts, a vertebrate, the sheep and an invertebrate host, which is the snail of the genera planorbis, limnaea and bulinus. Economically important infections are seen in cattle, sheep, alpacas, and llamas in three forms.
However, its infection on the primary host sheep is of considerable economic importance. Infection caused by fasciola hepatica with treatment. Fasciola hepatica pdf animal diseases epidemiology. Dna multigene characterization of fasciola hepatica and lymnaea. Fasciola hepatica lifecycle was maintained in rabbits. It has been classified as a neglected tropical disease. Light infections due to fasciola hepatica may be asymptomatic. At his first visit to the hospital, a gallbladder stone was suspected. Strategic control and prevalence of fasciola hepatica in. In the united kingdom, fasciola hepatica is a frequent cause of disease in ruminants this is most common between march and december. They are able to produce both sexually and asexually. Nausea, fever, right hypochondrium pain, hepatomegali, and hypereosinophilia with or without urticaria are seen in the acute phase.
The disease caused by the fluke is called fascioliasis. Oct 11, 2019 fasciola, lymnaeids and human fascioliasis, with a global overview on disease transmission, epidemiology, evolutionary genetics, molecular epidemiology and control. It causes damage to the liver tissues producing liver rot in all sheep breeding areas of the world. Fasciola hepatica the liver fluke zoology for ias, ifos. En nuestro pais, predomina en provincias del centro y n.
Fasciolahepatica is a common fluke found in the liver and bile ducts of cattle, sheep, goat, pig, rabbit, dog etc. Clonorchis sinensis, fasciola gigantica, fasciola hepatica, opisthorchis felineus, opisthorchis viverrini, and paragonimus spp. 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. Fasciola hepatica infection is widespread across eastern new south wales where the annual mean rainfall is about. Fasciola hepatica liver fluke antibody elisa test outline fasciolosis, or liver fluke, is a helminthiasis caused by a trematode, fasciola hepatica or f. Fasciola hepatica in ruminants merck veterinary manual. Fasciola hepatica linnaeus, 1758 solange 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. Fascioliasis due to fasciola hepatica and fasciola gigantica infection. Foodborne trematodiases are an emerging public health problem in southeast asia and latin america, and are caused by the following flukes.
Fascioliasis is found in all continents except antarctica, in over 70 countries, especially where there are sheep or cattle. Serology is an aid for diagnosis and cannot be used as the sole method of diagnosis. We report an 87yearold korean male patient with postprandial abdominal pain and discomfort due to f. Globally, it has been estimated that approximately 56 million people are infected by these parasites. Fascioliasis is caused by two species of parasitic flatworms or trematodes that mainly affect the liver. Fascioliasis is a zoonotic infection caused by fasciola hepatica or fasciola gigantica. The disease caused by the fluke is called fascioliasis also kn. A related parasite, fasciola gigantica, also can infect people. Fasciola hepatica simple english wikipedia, the free. In this article we will discuss about the infection caused by fasciola hepatica and its treatment. In one study conducted in this region, an average prevalence of. 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.
It affects humans, but its main host is ruminants such as cattle and sheep. Leuckartthomos reported the life cycle of liver fluke in snail. It is important to get an idea about the fasciola hepatica life cycle to determine the best treatment option. The zoonoses are particularly endemic in sheepraising countries and are also endemic in iran. It infects the livers of various mammals, including humans. Fasciola hepatica bahiya basheer 2nd year mbbs student 2. However, it is not a legal authority for statutory or regulatory purposes. The disease is a plantborne trematode zoonosis, and is classified as a neglected tropical disease ntd. Association of fasciola hepatica infection with liver. Thomas and leuokart experimentally demonstrated the changes of liver fluke in a pond snail. Fasciola hepatica, duela del higado animales invertebrados.
In 22 73% patients, the diagnosis of fascioliasis was based on radiological findings on abdominal ct examination and positive iha test. En este video podemos ver una cercaria del parasito fasciola hepatica o duela del higado. No seculo xviii, com o inicio do ciclo do ouro e diamante e o declinio da producao acucareira no nordeste, um fl uxo migratorio intenso introduziu a endemia em minas gerais figura 1. All relevant data are within the paper and its supporting information files. The effects of liver fluke are referred to as fascioliasis, and include anaemia, weight loss and submandibular oedema. In general, the disease caused by the infection of fasciola hepatica is referred to as fascioliasis. The bordier fasciola hepatica elisa kit is intended for the quantitative detection of igg antibodies against fasciola hepatica in human serum.
Adults are hermaphroditic and are capable of both crossfertilization and self. Dna multigene characterization of fasciola hepatica and. Fasciola hepatica vive come parassita nei dotti biliari degli erbivori, il suo ciclo e legato allacqua ed alla presenza del suo ospite intermedio. Il ciclo di vita prende due o tre mesi in condizioni ideali. Infections due to fasciola gigantica occur mainly in cattle raising areas and cause clinical symptoms similar to those of fasciola hepatica although human infections are less common. The liver fluke is a species of parasitic flat worm that infects mammals. Itis taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Fasciolasis distomatosis puede afectar a cualquier mamfero y ocasionalmente. 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.
Thomas and leuokart experimentally demonstrated the changes of liver fluke in a. Fasciola parasites live as adult flukes in the bile duct and immature eggs go out through feces and grow in fresh. Introduction cajamarca is a major dairy basin in peru whose productivity has been affected by endemic infection with fasciola hepatica for many years. Il parassita adulto depone uova che vengono portate dalla bile nellintestino e raggiungono lesterno con le feci necessariamente in ambiente acquatico. 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. T able 2 logistic regression analysis for risk factors for fasciola hepatica infection v ariable cases n 61 controls n 61 odds ratio 95% ci p drinking alfalfa juice 42 68. Fasciola hepatica definition of fasciola hepatica by. Cattle and sheep are infected when they consume the infectious stage of the parasite from lowlying, marshy pasture. Este helminto e conhecido popularmente como baratinha do figado. Prevalence is highest in areas where extensive sheep and cattle raising occurs and where dietary practices include the consumption of raw aquatic vegetables. The trematodes fasciola hepatica also known as the common liver fluke or the sheep liver fluke and fasciola gigantica are large liver flukes f. Dna multigene characterization of fasciola hepatica. Snails infected with miracidia obtained from cattle showed higher infection rate than the ones infected with miracidia obtained from rabbits, but the means of rediae and cercariae per infected snail were lower.
While every effort has been made to provide the most reliable and uptodate information available, ultimate legal requirements with respect to species are contained in. Pdf clinical characteristics of chronic infection by. Fascioliasis is a worldwide zoonotic infection with fasciola hepatica and fasciola gigantica. Fasciola hepatica infection was detected in 30 patients 24 females, mean age. Clinical presentation and management of fasciola hepatica.
Among domestic animals, the sheep liver fluke fasciola hepatica may cause debilitating and fatal epidemics liver rot in sheep. Fasciola hepatica can affect 46 species of wild and domestic animals as well as humans. Fasciolosis parasitologia medica, 4e accessmedicina. It is a parasitic trematode fluke or flatworm in the phylum platyhelminthes. It completes its life history in sheep and fresh water snail. The characterization of fasciola hepatica from cattle and horses of. Fasciola hepatica in osterreich ein fallbericht zobodat. In fascioliasis caused by the liver fluke fasciola hepatica, a small parasitic flatworm that lives in the bile ducts and causes a condition known as liver rot read more. Fasciolosis is a parasitic worm infection caused by the common liver fluke fasciola hepatica as well as by fasciola gigantica. The disease caused by the fluke is called fasciolosis or fascioliasis, which is a type of helminthiasis and has been classified as a neglected. Fasciola hepatica commonly called sheep liver fluke.