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近两年,我们对我省的草鱼出血病流行情况进行了调查,并开展了出血病组织浆灭活疫苗(下简称为组织浆苗)注射免疫的试验观察。现将结果初步整理如下:
In the past two years, we investigated the prevalence of grass carp hemorrhagic disease in our province and carried out experimental observations on the immunization of the tissue-inactivated vaccine of hemorrhagic disease (hereinafter referred to as tissue pulp). The results are now preliminarily summarized as follows: