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.
Why is Clonorchis sinensis called Chinese liver fluke?
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 sinensis disease?
(Chinese or Oriental Liver Fluke Infection) Clonorchiasis is infection with the liver fluke Clonorchis sinensis. Infection is usually acquired by eating undercooked freshwater fish. Symptoms include fever, chills, epigastric pain, tender hepatomegaly, diarrhea, and mild jaundice.
How is Clonorchis sinensis most likely transmitted to humans?
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.
Which parasite causes Clonorchiasis and Opisthorchiasis?
Symptoms of opisthorchiasis (caused by Opisthorchis spp.) are indistinguishable from clonorchiasis (caused by Clonorchis sinensis).
What is the life cycle of the Chinese liver fluke?
Following ingestion, the young flukes migrate to the liver, through which they tunnel, causing considerable tissue damage. The infection is patent about 10-12 weeks after the metacercariae are ingested. The whole cycle takes 18-20 weeks.
How is the presence of Clonorchis sinensis diagnosed?
Detection of eggs in stool can lead to a definite diagnosis of Clonorchis sinensis infection (clonorchiasis), thus, clonorchiasis has been principally diagnosed by stool microscopic examination.
How is the presence of clonorchis sinensis diagnosed?
How is the presence of Fasciola hepatica diagnosed?
Diagnostic Tests: The definitive and most widely used form of diagnosis is the directly observed presence of Fasciola hepatica eggs either in a stool sample, duodenal aspirate or biliary aspirate. However, the flukes do not begin to produce eggs until roughly 4 months after infection.
What kind of disease does Clonorchis sinensis cause?
The trematode Clonorchis sinensis (Chinese or oriental liver fluke) is an important foodborne pathogen and cause of liver disease in Asia. This appears to be the only species in the genus involved in human infection. Clonorchis sinensis eggs are discharged in the biliary ducts and in the stool in an embryonated state .
Where does the liver fluke Clonorchis sinensis live?
Clonorchis sinensis, Opisthorchis viverrini, and O. felineus are trematode liver flukes. The first two are common in southern Asia, and O. felineus is found in eastern Europe. After ingestion of undercooked fish or crab, the metacercariae excyst in the small intestine and migrate to the small intestine.
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.
How are Clonorchis sinensis eggs different from other flukes?
Clonorchis sinensis eggs are differentiated from those of heterophyid flukes by morphological features, such as shouldering around the operculum, wrinkles on the outer surface, and an abopercular knob. However, it is difficult to differentiate C. sinensis eggs from those of Opisthorchis spp. under a microscope.