''Metagonimus miyatai'' is a species of a
trematode, or fluke worm, in the family
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 suc ...
.
It is a human parasite causing
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. Met ...
.
Distribution
This species occurs in
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
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
Parasitology is the study of parasites, their hosts, and the relationship between them. As a biological discipline, the scope of parasitology is not determined by the organism or environment in question but by their way of life. This means it fo ...
'' 51(3):271–280. . and ''
Koreoleptoxis globus''.
The second intermediate host include freshwater fish: ''
Phoxinus lagowskii
''Phoxinus'' is a genus of freshwater fish in the family Leuciscidae of order Cypriniformes, and the only members of the subfamily Phoxininae, or Eurasian minnows. The type species is ''Phoxinus phoxinus''. The other species in this genus are al ...
steindachneri'',
''
Zacco platypus
The pale chub, (''Zacco platypus''), also known as pale bleak or fresh-water sprat, is a species of fish native to rivers and streams from northern China and Korea to northern Vietnam. They can grow up to but usually grow up to . Its diet consist ...
'', ''
Nipponocypris temminckii
''Nipponocypris temminckii'' (common name: the Dark chub) is a species of cyprinid in the genus ''Nipponocypris''. It inhabits China, Japan and Korea
Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has be ...
'', ''
Plecoglossus altivelis
Ayu or AYU may refer to:
* Ayu (given name)
* Ayu sweetfish (''Plecoglossus altivelis''), a species of smelt
* ''Ayu'', a local name for the African manatee
* Ayu (singer) or Ayumi Hamasaki, Japanese singer
* Ayu Islands, a small archipelago in I ...
'', ''
Tribolodon hakonensis'', and ''
Tribolodon brandtii'', ''
Opsariichthys bidens
''Opsariichthys bidens'', the Chinese hooksnout carp, is a species of freshwater fish in the family Cyprinidae. It is endemic to fast-flowing streams and rivers of East Asia ( China, Japan, North Korea, South Korea, and Russia) and mainland So ...
''.
Natural definitive hosts are: dogs, red fox ''
Vulpes vulpes japonica
The red fox (''Vulpes vulpes'') is the largest of the true foxes and one of the most widely distributed members of the order Carnivora, being present across the entire Northern Hemisphere including most of North America, Europe and Asia, plus p ...
'',
Japanese raccoon dog ''Nyctereutes procyonoides viverrinus'',
black-eared kite ''Milvus migrans lineatus'', and humans.
Experimental definitive hosts are: mice, rats, hamsters, and dogs.
References
External links
*
Heterophyidae
Animals described in 1997
{{parasitic animal-stub