病鱼的皮肤、鳞囊、鳍、鳃、肾、肝、脾和肠都显出不同程度的病理变化，尤其是肾、鳃和皮肤更严重。

The derma scale follicle fin gill kidney liver spleen and intestine of diseased fish revealed to a greater or lesser degree pathological changes especially in the kidney derma and gill.

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正常组织中，CCL4基因在草鱼脾脏表达量最高，心、肌、鳃、肝中次之，肠和肾中有少量表达，在脑中有痕量表达。

In the normal tissues of grass carp, CCL4 gene had the highest expressional level in spleen, followed by heart, muscle, gill, liver, and little amount in intestine and kidney, trace amount in brain.

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