组织病理损伤主要是鱼鳃上皮细胞的增生和肥大。
Histopathological lesions are mainly hyperplasia and hypertrophy of the gill epithelium.
治疗后的乳鼠生存率提高，组织病理损伤减轻，病毒抗原量减少。
After the infected mice were treated with the effective components their survival rate increased, pathological lesion and virus antigen in the tissues mitigated as compared with the conrols.
组织病理学损伤局限于这些部位。
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