Schistosoma japonicum

- their nature and scientific aspects -

Akihiro Toyoda (University of Tsukuba School of Medicine)
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Introduction

[schitosoma japonicum adult]

Schistosomes, or blood flukes are known as parasites that inhabit the animal blood flow. Their infection brings lots of harmful effects to human body: Schistosomiasis or Katayama fever, these are the names of disease that is caused by the infection of schistosomes.

Main symptoms of this disease are usually affected by the eggs of schistosomes; Damages by them to the gut and the liver are most seen in the schistosomiasis patients. The amount of patients are large; It is estimated to be about two million, and six million is said to have a risk of infection. Therefore, schistosomiasis is also regarded as one of the three worst parasite diseases of the world (another ones are Malariasis and Filariasis).

There are mainly four schistosoma species that parasitize human, that is,

Contents

History

Anatomy

Lifecycle

Pathology and Pathogenesis

Clinical Aspects

Current Research about Schistosomes

Information about Shistosomiasis from WHO (World Health Organization)

Information from Sichuan Project at UC Berkeley

Selected References


Acknowledgements;
I want to show my bosom gratitude to Dr. Y. Irie (Institute of Basic Medical Sciences, University of Tsukuba) and Ms. S. Nara for their lectures and technical assistance. The encouragement of Drs. K. Yasuraoka (Institute of Basic Medical Sciences, University of Tsukuba) and K. Mott (Division of Control of Tropical Diseases, WHO) are also appreciated.


Please E-mail to: akky@mx2.ttcn.ne.jp

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