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吸附精制百白破混合制剂（DTPa）系由戊二醛解毒的百日咳毒素和丝状血凝素，通过蔗糖密度梯度离心去除内毒素，再与白喉和破伤风类毒素以及AI（OH）a按一定比例混合制成。经对接种人群反应和血清学效果观察，证实了其良好的安全性和免疫原性。为了解该制品的稳定性，我们对于保
Adsorption Purified Bupleurum Mixture (DTPa) is a combination of pertussis toxin and filamentous hemagglutinin detoxified by glutaraldehyde. Endotoxin was removed by sucrose density gradient centrifugation followed by diphtheria and tetanus toxoid and AI (OH) a A certain percentage of mixed made. After vaccination population response and serological observation, confirmed its good safety and immunogenicity. To understand the stability of the product, we are Paul