Thursday, 13 December 2012

In Guangxi, 60% of villagers infected with liver flukes

Liver flukes and minute intestinal flukes are endemic in some parts of Guangxi
by Michael Woodhead
A study of villagers in rural Guangxi province near Nanning has found that around 60% of them are infected with fish-borne trematodiasis, manifesting as liver flukes or intestinal flukes.
The liver flukes caused by Clonorchis sinensis appear to be endemic in the region and can cause chronic diseases and are a neglected public health issue in the area, say parasitologists who carried out a study in six rural villages in southern Guangxi.
Their analysis of faecal samples from more than 700 local residents found an overall egg positive rate of 60% (428/718) for C. sinensis and minute intestinal flukes. In some villages the rates were as high as 70%, and cases of heavy fluke infection were seen in up to 18% of villagers.
The researchers say the rates are higher than previously seen and reflect the endemic nature of the liver flukes in the area. The prevalence of C. sinensis infection was found to be 0.4% in a nationwide survey in China between 1988 and 1992, they note.
The infections come from infected fish int he area say researchers form Korea working in conjunction with scientists from the Guangxi Center for Disease Prevention and Control, Nanning. 
Source: Korean Journal of Parasitology

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