Clonorchis sinensis

Clonorchiasis sinensis of bile duct, commonly known as liver fluke, was first found in the bile duct of an overseas Chinese in Kolkata, India in 1874, and confirmed in China in 1908. In 1975, Clonorchis sinensis eggs were found in the ancient corpses of the Western Han Dynasty and the Warring States Tombs in Jiangling County, Hubei Province, proving that the disease has been prevalent in China for at least 2,300 years. Clonorchiasis can be found all over the world, mainly in Asian countries such as China, Japan, North Korea, South Korea, and Vietnam. At present, there are 26 provinces, cities, autonomous regions, and special administrative regions in our country where the disease has occurred or spread. Due to poor eating habits, the number of infected people in Guangdong Province in China is the largest, about 5 million, accounting for half of the total number of people infected in the country. Adults parasitize in the biliary system, causing chonorchiasis of bile duct. The mild can be asymptomatic, and the severe can cause cholecystitis, cholangitis, bile duct stones, biliary tract tumors, malnutrition and growth and development disorders.

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