南方医科大学公共卫生学院;
诺如病毒(Norovirus, NoV)是引起全球范围内人类急性胃肠炎(Acutegastroenteritis, AGE)的主要病原体,对全球健康和经济造成了重大威胁。已有研究在不同种类的动物粪便中检出人类诺如病毒(Human norovirus,HuNoV)的核酸或在家畜血清中检测出可识别HuNoV病毒样颗粒(Virus like particles,VLP)的抗体,这引起了公众对NoV是否为潜在人兽共患病的关注与讨论。本研究基于HuNoV主要流行株GⅡ.4建立了一种检测GⅡ.4IgG的荧光素酶免疫吸附试验(Luciferase immunosorbent assay,LISA)。LISA法具有较高的灵敏度(94.87%)和特异度(98.18%);最低检测限是ELISA法的2~16倍;GⅡ.4-LISA检测人血清的批间和批内变异系数值均小于10%,重复性良好。GⅡ.4 IgG在狗、猪、蝙蝠、大鼠和鼩鼱等不同的家畜和野生动物中均有检出,阳性率在3.37%~39.53%之间,其中蝙蝠的检出率最高(39.53%),狗次之(9.72%)。综上所述,本研究建立的GⅡ.4-LISA方法适用于人和不同种属动物中GⅡ.4特异性IgG检测。针对HuNoV的IgG抗体广泛分布,提示NoV可能是潜在的人畜共患病。
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基本信息:
DOI:10.13242/j.cnki.bingduxuebao.004582
中图分类号:R512.5;R446.6
引用信息:
[1]王宇,张敏怡,徐嘉怡等.诺如病毒GⅡ.4 IgG抗体的荧光素酶免疫吸附方法的建立及在动物血清中的应用[J].病毒学报,2024,40(05):978-985.DOI:10.13242/j.cnki.bingduxuebao.004582.
基金信息:
广东省重点领域研发项目(项目号:2022B1111020002),题目:华南地区主要流行人类病毒模式小鼠资源库的建立及评估应用;; 国家自然科学基金(项目号:31771007),题目:GII.4型诺如病毒全人广谱中和单抗及其保守表位研究;; 广东省自然科学基金(项目号:2019A1515010951),题目:基于自然人群队列诺如病毒基因型更迭的群体免疫机制研究~~