两野毒株均有33个碱基发生改变。
目的了解浙江省麻疹野毒株的抗原性变异状况。
Objective To study the antigenic variation of wild-type measles virus prevailing in Zhejiang Province.
结论浙江省麻疹野毒株已出现明显的抗原性变异。
Conclusions Wild-type measles virus prevailing in Zhejiang Province has appeared significant antigenic variation.
用微量中和试验测定麻疹病人急性期和恢复期血清中和麻疹疫苗株和野毒株的中和抗体水平。
The neutralization antibody levels for measles vaccine virus and wild measles virus in sera of measles patients in acute phase and convalescent phase were determined by trace neutralization test.
回归试验结果表明，该GPV野毒株的感染潜伏期为8天，病程为1～3天，致死率达100%；
The results of regressive tests of GPV wild strain showed that latent period was8d, lasting1~3d after infected, and lethal rate was100%.
本试验从广西南宁、隆安和巴马分离到三株狂犬病毒野毒株，分别编号为119、GXLA和GXBM。
In this study three wild strains of rabies virus were isolated from Nanning, Longan and Bama of Guangxi and were designated as 119, GXLA and GXBM respectively.
试验1中，从山东省某疑似感染IBDV的鸡场分离到1株IBDV野毒，并就其对SPF鸡的致病性进行了研究。
Experiment 1, a strain of IBDV was isolated from IBDV-suspected chickens in Shandong province and the pathogenicity on specific pathogen free (SPF) chicken was studied.
试验1中，从山东省某疑似感染IBDV的鸡场分离到1株IBDV野毒，并就其对SPF鸡的致病性进行了研究。
Experiment 1, a strain of IBDV was isolated from IBDV-suspected chickens in Shandong province and the pathogenicity on specific pathogen free (SPF) chicken was studied.
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