Stewart D L, Davidson I, Hebert C N, Frerichs C C
Bull World Health Organ. 1971;45(2):219-32.
The WHO Expert Committee on Biological Standardization requested the Central Veterinary Laboratory, Weybridge, England, to arrange a collaborative assay of material they had prepared to determine its suitability to serve as an international reference preparation of anti-Mycoplasma gallisepticum serum. Fourteen laboratories in eight countries performed comparative assays of the proposed reference preparation together with 3 immune sera from fowls. On the basis of the results obtained, the Committee established the preparation as the International Reference Preparation of Anti-Mycoplasma gallisepticum Serum and defined the International Unit as the activity contained in 0.0556 mg of the International Reference Preparation.
世界卫生组织生物标准化专家委员会要求英国韦布里奇的中央兽医实验室安排一次协作测定,以确定他们所制备的材料是否适合作为鸡败血支原体抗血清的国际参考制剂。来自八个国家的14个实验室对提议的参考制剂与3份鸡免疫血清进行了比较测定。根据所获得的结果,委员会将该制剂确立为鸡败血支原体抗血清国际参考制剂,并将国际单位定义为0.0556毫克国际参考制剂中所含的活性。