| Metagonimus miyatai | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Trematoda |
| Order: | Plagiorchiida |
| Family: | Heterophyidae |
| Genus: | Metagonimus |
| Species: | M. miyatai |
| Binomial name | |
| Metagonimus miyatai Saito, Chai, Kim, Lee and Rim, 1997 [1] | |
Metagonimus miyatai is a species of a trematode, or fluke worm, in the family Heterophyidae.
It is a human parasite causing metagonimiasis.
The first intermediate hosts of Metagonimus miyatai include freshwater snails Semisulcospira libertina , [2] Semisulcospira dolorosa , [2] and Koreoleptoxis globus . [3]
The second intermediate host include freshwater fish: Phoxinus lagowskii steindachneri, [2] Zacco platypus , Nipponocypris temminckii , Plecoglossus altivelis , Tribolodon hakonensis , and Tribolodon brandtii , Opsariichthys bidens . [1] [3]
Natural definitive hosts are: dogs, red fox Vulpes vulpes japonica , Japanese raccoon dog Nyctereutes procyonoides viverrinus, black-eared kite Milvus migrans lineatus, and humans. [1]
Experimental definitive hosts are: mice, rats, hamsters, and dogs. [1] [3]
Trematoda is a class of flatworms known as flukes or trematodes. 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.
Clonorchis sinensis, the Chinese liver fluke, is a liver fluke belonging to the class Trematoda, phylum Platyhelminthes. It infects fish-eating mammals, including humans. In humans, it infects the common bile duct and gall bladder, feeding on bile. It was discovered by British physician James McConnell at the Medical College Hospital in Calcutta (Kolkata) in 1874. The first description was given by Thomas Spencer Cobbold, who named it Distoma sinense. The fluke passes its lifecycle in three different hosts, namely freshwater snail as first intermediate hosts, freshwater fish as second intermediate host, and mammals as definitive hosts.
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. M. takahashii was described later first by Suzuki in 1930 and then M. miyatai was described in 1984 by Saito.
Opisthorchis viverrini, common name Southeast Asian liver fluke, is a food-borne trematode parasite from the family Opisthorchiidae that infects the bile duct. People are infected after eating raw or undercooked fish. Infection with the parasite is called opisthorchiasis. O. viverrini infection also increases the risk of cholangiocarcinoma, a cancer of the bile ducts.
Echinostoma is a genus of trematodes (flukes), which can infect both humans and other animals. These intestinal flukes have a three-host life cycle with snails or other aquatic organisms as intermediate hosts, and a variety of animals, including humans, as their definitive hosts.
Centrocestus formosanus, or the mystery fluke, is a trematode parasite of Asian origin that has found its way into North American streams and rivers. It not only affects the fountain darter but many species of commercially important fishes. It is also capable of infecting humans
Heterophyes heterophyes, or the intestinal fish fluke, was discovered by Theodor Maximaillian Bilharz in 1851. This parasite was found during an autopsy of an Egyptian mummy. H. heterophyes is found in the Middle East, West Europe and Africa. They use different species to complete their complex lifestyle. Humans and other mammals are the definitive host, first intermediate host are snails, and second intermediate are fish. Mammals that come in contact with the parasite are dogs, humans, and cats. Snails that are affected by this parasite are the Cerithideopsilla conica. Fish that come in contact with this parasite are Mugil cephalus, Tilapia milotica, Aphanius fasciatus, and Acanthgobius sp. Humans and mammals will come in contact with this parasite by the consumption of contaminated or raw fish. This parasite is one of the smallest endoparasite to infect humans. It can cause intestinal infection called heterophyiasis.
Echinostoma cinetorchis is a species of human intestinal fluke, a trematode in the family Echinostomatidae.
Haplorchis taichui is a species of intestinal fluke in the family Heterophyidae. It is a human parasite.
Semisulcospira libertina is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Semisulcospiridae. Widespread in east Asia, it lives in China, Taiwan, Korea, Japan, and the Philippines. In some countries it is harvested as a food source. It is medically important as a vector of clonorchiasis, paragonimiasis, metagonimiasis and others.
Metagonimus yokogawai, or the Yokogawa fluke, is a species of a trematode, or fluke worm, in the family Heterophyidae.
Semisulcospira reiniana is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Semisulcospiridae.
Centrocestus armatus is a species of trematodes, or fluke worms, in the family Heterophyidae.
Liolope is a monotypic genus of trematodes, or fluke worms, belonging to the family Liolopidae. The only species is Liolope copulans.
Metorchis conjunctus, common name Canadian liver fluke, is a species of trematode parasite in the family Opisthorchiidae. It can infect mammals that eat raw fish in North America. The first intermediate host is a freshwater snail and the second is a freshwater fish.
Metagonimus is a genus of trematodes, or fluke worms, in the family Heterophyidae.
Metagonimus takahashii is a species of a trematode, or fluke worm, in the family Heterophyidae.
Heterophyes nocens is a species of trematodes, or fluke worms, in the family Heterophyidae.
Acanthotrema is a genus of trematodes in the family Heterophyidae.
Gastropod-borne parasitic diseases (GPDs) are a group of infectious diseases that require a gastropod species to serve as an intermediate host for a parasitic organism that can infect humans upon ingesting the parasite or coming into contact with contaminated water sources. These diseases can cause a range of symptoms, from mild discomfort to severe, life-threatening conditions, with them being prevalent in many parts of the world, particularly in developing regions. Preventive measures such as proper sanitation and hygiene practices, avoiding contact with infected gastropods and cooking or boiling food properly can help to reduce the risk of these diseases.
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