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鸡伤寒沙门菌减毒株1009ΔspiCΔcrp的保护效力评价 被引量:2

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摘要 目的为研制安全有效的鸡伤寒沙门菌减毒活疫苗,该实验对鸡伤寒沙门菌减毒株1009ΔspiCΔcrp的安全性及保护力进行观察。方法以1×108集落形成单位的1009ΔspiCΔcrp对3日龄雏鸡口服免疫,在7 d后进行再次免疫,测定雏鸡的体质量变化、血清抗体水平和细胞因子水平,并对SG9强毒株攻毒后的保护力进行评价。结果免疫组鸡的体质量增长与对照组无明显差异,血清IgG水平持续上升并显著高于对照组,白细胞介素4(IL-4)、IL-6和IL-1β的水平也升高。以SG9强毒株攻击后,免疫组的保护率为100%,而对照组为20%。HE染色结果显示,免疫组鸡无病变,而对照组鸡脏器病变明显。结论1009ΔspiCΔcrp具有良好的安全性和免疫原性,是防治鸡伤寒理想的疫苗候选株。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2016年第1期67-70,共4页 Chinese Journal of Cellular and Molecular Immunology
基金 国家高技术研究发展计划(863)(2011AA10A212) 公益性行业(农业)科研专项(201403054) 国家自然科学基金(31372414) 教育部新世纪优秀人才支持计划(NCET-12-0745) 江苏省高校"青蓝工程"中青年学术带头人培养对象项目(2012年度) 江苏高校优势学科建设工程项目(2014年度)
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