求翻译：根据临床症状和特点，此种病没有禽流感、新城疫严重，因为禽流感、新城疫变异速度快，很难预防和治疗3.跟普通疫苗差不多，没有什么太大的特点是什么意思？

Based on clinical symptoms and characteristics of such a disease, avian influenza, Newcastle disease serious because of the avian influenza, Newcastle disease variation fast, it is difficult to prevent and treat 3. Almost like an ordinary vaccines, not much features

Based on the clinical symptoms and characteristics, this disease is not avian flu, Gumboro serious, because bird flu outbreak, Metro speed variation, it is difficult to prevent and treat common vaccine with 3 more or less, there is nothing too big, and the characterized

According to the clinical symptom and the characteristic, this kind of sickness does not have the bird flu, the new town epidemic disease to be serious, because the bird flu, the new town epidemic disease variation speed is quick, very difficult to prevent and treats 3. to be similar with the ordina

Based on clinical symptoms and characteristics of such diseases are not avian influenza, Newcastle disease virus serious, because avian influenza, Newcastle disease virus mutation rate fast, it is difficult to prevent and treat 3. almost like conventional vaccines, there is nothing too big in featur

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