[Slow commentary] The horror of the endemic disease "Schistosomal japonicum" that has lasted for ...

Опубликовано: 15 Июль 2026
на канале: へんないきものチャンネル
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The endemic disease refers to Japanese schistosomiasis, a mysterious disease that originated in Yamanashi Prefecture and struck the Kofu Basin from 1887 to 1896, around the 1880s.
This disease was later discovered to be a parasitic worm that uses the Japanese snail as an intermediate host. For 115 years, it terrified villagers as an unknown illness that caused liver enlargement, abdominal distension, and death.

However, thanks to the efforts of villagers and local authorities, as well as the involvement of many doctors, including Junsaku Yoshioka, the problem was resolved.
We hope you enjoy this documentary about the long battle between humanity and parasites.

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(Table of Contents)
0:00 Overview of Schistosoma japonicum
1:25 The Beginnings of Schistosoma japonicum (Endemic Disease)
3:22 Dr. Yoshioka's Investigation into the Cause and Initiatives
6:01 A Request from Terminally Ill Patient Naka Sugiyama
7:44 Research on Endemic Diseases: Mr. Mikami and Mr. Katsurada
9:28 Identifying the Cause of Endemic Diseases and Countermeasures
13:45 Discovery and Eradication of the Intermediate Host, the Mussel
16:20 Modern Countermeasures for Schistosoma japonicum (Endemic Disease)

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