What type of organism is clonorchis?

Clonorchis is a liver fluke parasite that humans can get by eating raw or undercooked fish from areas where the parasite is found. Found across parts of Asia, Clonorchis is also known as the Chinese or oriental liver fluke. Liver flukes infect the liver, gallbladder, and bile duct in humans.

What is the phylum of liver fluke?

Flatworm
Fasciola hepatica/Phylum

What is the difference between Opisthorchis and clonorchis?

Adults of Opisthorchis spp. are similar to, but often smaller than, Clonorchis sinensis. Adults measure approximately 7 mm long by 1.5 mm wide in the human host (adults are slightly smaller in feline hosts). Adults of Opisthorchis spp. differ from adults of Clonorchis in the shape of the testes.

What organism is the final definitive host for clonorchis?

The final hosts are infected with C. sinensis through the ingestion of raw or undercooked freshwater fish containing metacercariae. Metacercariae excyst in the duodenum of the host before moving to the bile ducts and further developing into adults [1, 13].

How is clonorchis sinensis transmitted?

How does one become infected with Clonorchis? The eggs of Clonorchis are ingested by freshwater snails. After the eggs hatch, infected snails release microscopic larvae that then enter freshwater fish. People become infected by eating infected raw or undercooked fish containing the larvae.

What disease does clonorchis sinensis cause?

(Chinese or Oriental Liver Fluke Infection) Clonorchiasis is infection with the liver fluke Clonorchis sinensis. Infection is usually acquired by eating undercooked freshwater fish.

What causes Fascioliasis?

Fascioliasis is a parasitic infection typically caused by Fasciola hepatica, which is also known as “the common liver fluke” or “the sheep liver fluke.” A related parasite, Fasciola gigantica, also can infect people.

Why do trematodes lay so many eggs?

Because of the small chance of transmission of parasite stages from host to host, internal parasites put much energy into reproduction, producing many, many eggs and/or larvae because so few ever reach the next host in the life cycle.

How do humans get Fasciola hepatica?

People usually become infected by eating raw watercress or other water plants contaminated with immature parasite larvae. The young worms move through the intestinal wall, the abdominal cavity, and the liver tissue, into the bile ducts, where they develop into mature adult flukes that produce eggs.

Where does Clonorchis sinensis occur in the world?

It is still actively transmitted in Korea, China, Vietnam, and Russia. Most infection (about 85%) is in China. The infection, called clonorchiasis, generally appears as jaundice, indigestion, biliary inflammation, bile duct obstruction, even liver cirrhosis, cholangiocarcinoma, and hepatic carcinoma.

What is the larval stage of Clonorchis sinensis?

Miracidium – This larval stage is ciliated and slightly oval in shape. It has 2 simple eyespots and lateral papillae which protrude outwards and serve as sensory organs. Sporocyst – The sporocyst resembles a hollow and simple sac. Oftentimes, the developing rediae are visible inside the sac.

What makes a Clonorchis sinensis cuticle yellow?

A thick and elastic cuticle lacks any kind of spines or scales and can either be a translucent gray color or yellow color (due to absorption of bile). When stained on a slide, its branched testes, lobed ovary, and follicular vitellaria are apparent as is the long and convoluted uterus.

What is the binomial name for Chinese liver fluke?

C. sinensis. Binomial name. Clonorchis sinensis. Looss, 1907. Clonorchis sinensis, the Chinese liver fluke, is a liver fluke belonging to the class Trematoda, phylum Platyhelminthes. It infects fish-eating mammals, including humans. In humans, it infects the common bile duct and gall bladder, feeding on bile.