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Metagonimus
''Metagonimus'' is a genus of trematodes Trematoda is a class of flatworms known as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is usually a snail. The definitive ..., or fluke worms, in the family Heterophyidae. It is a parasite causing metagonimiasis. Species There are 8 species within the genus ''Metagonimus'' include: * '' Metagonimus hakubaensis'' Shimazu, 1999 * '' Metagonimus katsuradai'' Izumi, 1935 * '' Metagonimus minutus'' * '' Metagonimus miyatai'' Saito, Chai, Kim, Lee and Rim, 1997 * '' Metagonimus otsurui'' Saito & Hori, 1962 * '' Metagonimus ovatus'' * '' Metagonimus takahashii'' Takahashi, 1929 * '' Metagonimus yokogawai'' (Katsurada, 1912) References External links * Heterophyidae Trematode genera {{parasitic animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metagonimus Yokogawai
''Metagonimus yokogawai'' is a species of a trematode, or fluke worm, in the family Heterophyidae. It is a human parasite causing metagonimiasis. It is among a few species of ''Metagonimus'' that cause metagonimiasis diseases (others being '' M. takahashii'' and '' M. miyatai''). Distribution This species occurs in Korea, China, Taiwan, Japan, Russia, Indonesia, Israel, and Spain. This species is found in areas with sweetfish, and that includes western and eastern riversides. It is basically found in places with water. Description ''Metagonimus yokogawai'' has adult flukes that parasitize the small intestine and causes inflammation. This species was discovered by Fujiro Katsurada with egg samples from Japan and Taiwan With this discovery, he was able to make a new genus of trematodes that this new parasite would fall under The size of these eggs are about 29 μm. Evidence also suggest that this parasite was present during the Yi dynasty. Life cycle The first intermed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metagonimus Ovatus
''Metagonimus'' is a genus of trematodes, or fluke worms, in the family Heterophyidae. It is a parasite causing metagonimiasis. Species There are 8 species within the genus ''Metagonimus'' include: * '' Metagonimus hakubaensis'' Shimazu, 1999 * '' Metagonimus katsuradai'' Izumi, 1935 * '' Metagonimus minutus'' * '' Metagonimus miyatai'' Saito, Chai, Kim, Lee and Rim, 1997 * '' Metagonimus otsurui'' Saito & Hori, 1962 * '' Metagonimus ovatus'' * '' Metagonimus takahashii'' Takahashi, 1929 * ''Metagonimus yokogawai ''Metagonimus yokogawai'' is a species of a trematode, or fluke worm, in the family Heterophyidae. It is a human parasite causing metagonimiasis. It is among a few species of ''Metagonimus'' that cause metagonimiasis diseases (others being ' ...'' (Katsurada, 1912) References External links * Heterophyidae Trematode genera {{parasitic animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metagonimiasis
Metagonimiasis is a disease caused by an intestinal trematode, most commonly ''Metagonimus yokagawai'', but sometimes by ''M. takashii'' or ''M. miyatai''. The metagonimiasis-causing flukes are one of two minute flukes called the heterophyids. Metagonimiasis was described by Katsurasa in 1911–1913 when he first observed eggs of ''M. yokagawai'' in feces (date is disputed in various studies). ''M. takahashii'' was described later first by Suzuki in 1930 and then ''M. miyatai'' was described in 1984 by Saito. Signs and symptoms The main symptoms are diarrhea and colicky abdominal pain. Because symptoms are often mild, infections can often be easily overlooked but diagnosis is important. Flukes attach to the wall of the small intestine, but are often asymptomatic unless in large numbers. Infection can occur from eating a single infected fish source. Peripheral eosinophilia is associated especially in early phase. When present in large numbers, can cause chronic intermittent diar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterophyidae
Heterophyidae is a family of intestinal trematodes in the order Plagiorchiida. Description: "Tegument covered by spines. Oral sucker not armed or armed by cyrcumoral spines. Pharynx presented. Genital synus presented. Ventral and genital suckers usually not combined. Cirrus and bursa absent. Two testes located in posterior part of the body. Vitellaria in posterior part of the body." First intermediate hosts are molluscs of Prosobranchia, second intermediate hosts are fishes. Definite hosts are birds and mammals, including humans. Genera *'' Acanthotrema'' Travassos, 1928 *'' Alloheterophyes'' Pearson, 1999 *''Apophallus'' Lühe, 1909 *'' Ascocotyle'' Looss, 1899 *'' Centrocestus'' Looss, 1899 *''Cercarioides'' Witenberg, 1929 *'' Condylocotyla'' Pearson & Prevot, 1985 *'' Cryptocotyle'' Lühe, 1899 *'' Dermocystis'' Stafford, 1905 *'' Galactosomum'' Looss, 1899 *'' Haplorchis'' Looss, 1899 *'' Haplorchoides'' Chen, 1949 *''Heterophyes'' Cobbold, 1866 *''Heterophyopsis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metagonimus Miyatai
''Metagonimus miyatai'' is a species of a trematode, or fluke worm, in the family Heterophyidae. It is a human parasite causing metagonimiasis. Distribution This species occurs in Japan and Korea.Chai J. Y., Darwin Murrell K. & Lymbery A. J. (2005). "Fish-borne parasitic zoonoses: Status and issues". '' International Journal for Parasitology'' 35(11-12): 1233-1254. . Life cycle The first intermediate hosts of ''Metagonimus miyatai'' include freshwater snails '' Semisulcospira libertina'', '' Semisulcospira dolorosa'',Shimazu T. (2002). "Life cycle and morphology of ''Metagonimus miyatai'' (Digenea: Heterophyidae) from Nagano, Japan". ''Parasitology International'' 51(3):271–280. . and '' Koreoleptoxis globus''. The second intermediate host include freshwater fish: ''Phoxinus lagowskii steindachneri'', ''Zacco platypus'', ''Nipponocypris temminckii'', ''Plecoglossus altivelis'', '' Tribolodon hakonensis'', and '' Tribolodon brandtii'', ''Opsariichthys bidens''. Natural defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metagonimus Takahashii
''Metagonimus takahashii'' is a species of a trematode, or fluke worm, in the family Heterophyidae. It is a human parasite causing metagonimiasis. Distribution This species occurs in Japan and Korea.Chai J. Y., Darwin Murrell K. & Lymbery A. J. (2005). "Fish-borne parasitic zoonoses: Status and issues". ''International Journal for Parasitology'' 35(11-12): 1233-1254. . Life cycle The first intermediate hosts of ''Metagonimus takahashii'' include freshwater snails '' Semisulcospira coreana'' and '' Koreanomelania nodifila''.Waikagul J. & Thaekham U. (2014)''Approaches to Research on the Systematics of Fish-Borne Trematodes'' Academic Press, 130 pp., page 97. The second intermediate host include freshwater fish: crucian carp ''Carassius carassius'', common carp The Eurasian carp or European carp (''Cyprinus carpio''), widely known as the common carp, is a widespread freshwater fish of eutrophic waters in lakes and large rivers in Europe and Asia.Fishbase''Cyprinus carpio'' Li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trematode
Trematoda is a Class (biology), class of flatworms known as flukes. They are obligate parasite, obligate internal Parasitism, parasites with a complex biological life cycle, life cycle requiring at least two Host_(biology), hosts. The intermediate host, in which asexual reproduction occurs, is usually a snail. The definitive host, where the flukes sexually reproduce, is a vertebrate. Infection by trematodes can cause disease in all five traditional vertebrate classes: mammals, birds, amphibians, reptiles, and fish. Etymology Trematodes are commonly referred to as flukes. This term can be traced back to the Old English name for flounder, and refers to the flattened, rhomboidal shape of the organisms. Taxonomy There are 18,000 to 24,000 known species of trematodes, divided into two subclasses — the Aspidogastrea and the Digenea. Aspidogastrea is the smaller subclass, comprising 61 species. These flukes mainly infect Bivalvia, bivalves and Osteichthyes, bony fishes.https://www.bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trematoda
Trematoda is a class of flatworms known as flukes. They are obligate internal parasites with a complex life cycle requiring at least two hosts. The intermediate host, in which asexual reproduction occurs, is usually a snail. The definitive host, where the flukes sexually reproduce, is a vertebrate. Infection by trematodes can cause disease in all five traditional vertebrate classes: mammals, birds, amphibians, reptiles, and fish. Etymology Trematodes are commonly referred to as flukes. This term can be traced back to the Old English name for flounder, and refers to the flattened, rhomboidal shape of the organisms. Taxonomy There are 18,000 to 24,000 known species of trematodes, divided into two subclasses — the Aspidogastrea and the Digenea. Aspidogastrea is the smaller subclass, comprising 61 species. These flukes mainly infect bivalves and bony fishes.https://www.biotaxa.org/Zootaxa/article/view/zootaxa.3918.3.2 Digenea — which comprise the majority of trematodes — are f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
