Echinostoma cinetorchis

Echinostoma cinetorchis is a species of human intestinal fluke, a trematode in the family Echinostomatidae.

Echinostoma cinetorchis
Scientific classification
Kingdom: Animalia
Phylum: Platyhelminthes
Class: Rhabditophora
Order: Plagiorchiida
Family: Echinostomatidae
Genus: Echinostoma
Species:
E. cinetorchis
Binomial name
Echinostoma cinetorchis
Ando & Ozaki, 1923[1]

Distribution

This species occurs in Korea.[2]

Hosts

Hosts of Echinostoma cinetorchis include:

  • Cipangopaludina chinensis (Gray, 1834) - Chinese mystery snail, an intermediate host[2]
  • Austropeplea ollula - as a first and main intermediate host[3]
  • Note on Hippeutis (Helicorbis) cantori - this species had previously been reported as first and second intermediate host, but in a subsequent study in a laboratory setting, the species was not able to be infected at all.[4]
  • Segmentina hemispaerula as a first and second intermediate host in Korea, based on laboratory work.[4]
  • Gyraulus convexiusculus as a potential first and second intermediate host in Korea, based on laboratory work.[4]

Experimentally induced infection of host species that occur in Korea in a laboratory setting include:[5]

From miracidia to cercaria, i.e. as a primary intermediate host:

From cercaria to metacercaria, i.e. as a second intermediate host:

and to a very small extent, due to the mostly lethal effect of the infection,
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References
  1. (in Japanese) Ando R. & Ozaki Y. (1923). "On four new species of trematodes of the family Echinostomatidae". Dobutsugaku Zasshi 35: 108-119.
  2. Chung, P. R.; Jung, Y. (1999). "Cipangopaludina chinensis malleata (Gastropoda: Viviparidae): A new second molluscan intermediate host of a human intestinal fluke Echinostoma cinetorchis (Trematoda: Echinostomatidae) in Korea". The Journal of Parasitology. 85 (5): 963–964. doi:10.2307/3285837. PMID 10577736.
  3. Chung, P. R.; Jung, Y.; Park, Y. K.; Hwang, M. K. (2001). "Austropeplea ollula (Pulmonata: Lymnaeidae): A new molluscan intermediate host of a human intestinal fluke, Echinostoma cinetorchis (Trematoda: Echinostomatidae) in Korea". The Korean Journal of Parasitology. 39 (3): 247–253. doi:10.3347/kjp.2001.39.3.247. PMC 2721074. PMID 11590915.
  4. Chung, P. R.; Jung, Y.; Park, Y. K. (2001). "Segmentina hemisphaerula: A New Molluscan Intermediate Host forEchinostoma cinetorchisin Korea". Journal of Parasitology. 87 (5): 1169–1171. doi:10.1645/0022-3395(2001)087[1169:SHANMI]2.0.CO;2. PMID 11695387.
  5. Ahn, Y. K.; Ryang, Y. S.; Chai, J. Y.; Sohn, W. M. (1989). "Cercarial shedding of Echinostoma cinetorchis and experimental infection of the cercariae to several kinds of snails". The Korean Journal of Parasitology (in Korean). 27 (3): 203. doi:10.3347/kjp.1989.27.3.203.

Further reading
  • Koga M (1938). "Addition of second intermediate host of Echinostoma cinetorchis". Nippon Kiscichu Gakkai Kiji. 10: 83.
  • Lee, S. H.; Chai, J. Y.; Hong, S. T.; Sohn, W. M. (1990). "Experimental life history of Echinostoma cinetorchis". The Korean Journal of Parasitology. 28: 39. doi:10.3347/kjp.1990.28.1.39.
  • Lee, S. H.; Jun, H. S.; Sohn, W. M.; Chai, J. Y. (1992). "Tegumental ultrastructure of juvenile and adult Echinostoma cinetorchis". The Korean Journal of Parasitology (in Korean). 30 (2): 65. doi:10.3347/kjp.1992.30.2.65.
  • Lee, S. H.; Lee, J. K.; Sohn, W. M.; Hong, S. T.; Hong, S. J.; Chai, J. Y. (1988). "Metacercariae of Echinostoma cinetorchis encysted in the fresh water snail, Hippeutis(Helicorbis) cantori, and their development in rats and mice". The Korean Journal of Parasitology. 26 (3): 189. doi:10.3347/kjp.1988.26.3.189.
  • Lee, S. K.; Chung, N. S.; Ko, I. H.; Ko, H. I.; Sohn, W. M. (1988). "A case of natural human infection by Echinostoma cinetorchis". The Korean Journal of Parasitology (in Korean). 26: 61. doi:10.3347/kjp.1988.26.1.61.
  • Miki T (1923). "On the second intermediate host of Echinostoma cinetorchis". Aichi Igakkai Zasshi. 30: 499–504.
  • Ryang, Y. S.; Ahn, K. Y.; Kim, W. T.; Shin, K. C.; Lee, K. W.; Kim, T. S. (1986). "Two cases of human infection by Echinostoma cinetorchis". The Korean Journal of Parasitology (in Korean). 24: 71. doi:10.3347/kjp.1986.24.1.71.
  • Seo B. S.; Cho S. Y.; Chai J. Y. (1980). "Studies on intestinal trematodes in Korea. I. A human case of Echinostoma cinetorchis infection with an epidemiological investigation". Seoul J Med. 21: 21–29.
  • Seo, B. S.; Park, Y. H.; Chai, J. Y.; Hong, S. J.; Lee, S. H. (1984). "Studies on intestinal trematodes in Korea XIV. Infection status of loaches with metacercariae of Echinostoma cinetorchis and their development in albino rats". The Korean Journal of Parasitology (in Korean). 22 (2): 181. doi:10.3347/kjp.1984.22.2.181.
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