The life cycle of Fasciola gigantica is as follows: eggs (transported with feces) → eggs hatch → miracidium → miracidium infect snail. Life ca passes its life cycle in two different hosts. • Definitive hosts- Sheep,goat, cattle or man. Adult worm in the biliary passages of the liver. Keywords: Fasciola gigantica, life history, biological characteristic, The general life cycle of fasciolids is described in the following passage.

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Fasciola gigantica Pathogen — Liver Trematodes Organism: Palearctic living in the northern part of the Old World. In the transmission stage the metacercariae are unknowingly ingested with aquatic plants by humans and grazing mammals.

Fasciola gigantica is a causative agents together with Fasciola hepatica of fascioliasis in ruminants and in humans worldwide. Fasciola gigantica Pathogen — Liver Trematodes.

Apparently, developmental stages of F. Miracidia are found in fresh water that contains intermediate snail hosts in the genus Lymnaea.

Prevention may be accomplished by public health education in areas where infections are endemic, stressing the dangers of eating watercress grown in the wild where animals and snails are abundant.

Science Asia Serological diagnosis of Fasciola hepatica. Digenea on life history traits of Lymnaea cousini and Lymnaea columella Gastropoda: Galba truncatula, the main intermediate host of F.

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Despite the importance to differentiate between the infection by either fasciolid species, due to their distinct epidemiological, pathological and control characteristics, there is, unfortunately, coprological excretion-related or immunological diagnosis are difficult. Free-swimming miracidia rapidly penetrated into the snail host, and gradually developed into the next larval stages; sporocyst, redia, and daughter redia with cercariae.


The sporocyst was oval, the redia was roughly cylindrical, and the cercaria was lifr with a long tail. In the United States F. In humans, maturation from metacercariae into adult flukes takes approximately 3 to 4 months. Our findings indicate that F. They possess an oral sucker and a ventral sucker in the center of their bodies and have very conspicuous cystogenous glands and a forked intestine. As with other trematodes, Fasciola develop in a molluscan intermediate host.

Diagnostic Medical Parasitology, 5th ed.

They are morphologically indistinguishable from those of Fasciolopsis buski. However, the testes and ovary were discovered on day 27 PI, and they developed to maturity on day 39 PI.

Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. The parasite infects cattle and buffalo and can also be seen regionally in goats, sheep, and donkeys. Patients may experience fever, nausea, vomiting, abdominal pain, hepatomegaly, hepatic tenderness, and eosinophilia. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

January 10, Page last updated: Some epidemiological aspects of fascioliasis among cattle of Ladakh. Gugantica infection is commonly called fasciolosis. Young daughter rediae and cercariae were present on day 21 no. In some instances humans are also infected.



Ethiopian living in sub-Saharan Africa south of 30 degrees north and Madagascar. Free-swimming cercariae were immediately allowed to adhere to rice plants, and capsules were constructed to protect metacercariae on rice plants. Read, Key Behaviors parasite sessile motile sedentary Communication and Perception The time gigantca takes for the shelled embryos of Fasciola gigantica to hatch is rapidly increased in the presence of light.

Members of the genus Fasciola require a snail in the family Lymnaeidae to complete their life cycle. The geographical distribution of F. Embryos of Fasciola species are able to persist outside the host for several months. In otherwords, Europe and Asia and northern Africa. The young sporocyst had packed germinal cells and eyespots no.

CDC has developed an immunoblot assay for fascioliasis based on a recombinant F. This species has both an oral and ventral sucker for feeding and attaching to the inside of its host. Dreyfuss and Rondeland [ 13 ] compared the productivity of infected F. The time it takes for the shelled embryos of Fasciola gigantica to hatch is rapidly increased in the presence of light.

Fully-developed cercariae were separated from the redia and shed from the snails on day 39 post-infection PI.