• Clonochris sinensis (liver fluke)

Clonorchis sinensis, 400X w.m.

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Product Description

Clonorchis sinensis, the Chinese liver fluke, is a human liver fluke in the class Trematoda, phylum Platyhelminthes. This parasite lives in the liver of humans, and is found mainly in the common bile duct and gall bladder, feeding on bile. These animals, which are believed to be the third most prevalent worm parasite in the world, are endemic to Japan, China, Taiwan, and Southeast Asia, currently infecting an estimated 30,000,000 humans. 85% of cases are found in China. The eggs of a C. sinensis, which contain the miracidium that develops into the adult form, float in fresh water until eaten by a snail. Once inside of the snail body, the miracidium hatches from the egg, and parasitically grows inside of the snail. The miracidium develops into a sporocyst, which in turn house the asexual reproduction of redia, the next stage. The redia themselves house the asexual reproduction of free-swimming cercaria. This system of asexual reproduction allows for an exponential multiplication of cercaria individuals from one miracidium. This aids the Clonorchis in reproduction, because it enables the miracidium to capitalize on one chance occasion of passively being eaten by a snail before the egg dies. Once the redia mature, having grown inside the snail body until this point, they actively bore out of the snail body into the freshwater environment.