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Medical Term:

Schistosoma japonicum


the Oriental or Japanese blood fluke, a species having eggs with small lateral spines, usually only a small knob; causes schistosomiasis japonica, with extensive pathology from encapsulation of the eggs, particularly in the liver, and is the most pathogenic of the three common schistosome species afflicting humans, possibly owing to greater egg production per female worm; it is also the most intractable to treatment and the most difficult to control, as the intermediate hosts are amphibious snails (species of Oncomelania, family Hydrobiidae) that can leave the water to avoid molluscicides, and also because many other animals, such as pigs, oxen, cattle, and dogs, serve as reservoir hosts.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.