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鳗凹凸病是由微孢虫寄生引起的。它病程缓慢,但难以治愈,且传播性强,是一类危害性较大的疾病。现将该病的防治方法介绍如下：
Encephalopathies are caused by parasites of the microsporidians. It is a slow course, but difficult to cure, and strong transmission, is a class of more harmful diseases. Now the prevention and treatment of the disease are described below: