科微学术

微生物学报

兔出血症病毒2型理化特性研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

四川省科技计划


Physicochemical properties of rabbit hemorrhagic disease virus type 2
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    [目的] 本研究旨在研究该病毒的理化特性,评价不同处理条件对RHDV2的杀灭效果。[方法] 本研究拟对临床疑似RHDV2感染致死的家兔进行RT-PCR鉴定病原,并利用不同pH值、不同温度、常用兽用消毒剂、不同浓度甲醛处理RHDV2,通过PMA-RT-qPCR对病毒理化特性进行研究。[结果] 经RT-PCR检测与测序分析,确诊为RHDV2感染,该毒株VP60基因序列与GenBank中RHDV2(登录号:MN276176.1)一致性为98.35%。PMA-RT-qPCR结果表明,RHDV2对酸碱、高温、兽用消毒剂、甲醛均表现不同程度的敏感性。酸碱处理病毒,随pH值降低或升高,病毒杀灭率均有提高。65处理病毒30 min后,病毒杀灭率可达77.61%,83处理5 min后,病毒杀灭率可达95.10%。RHDV2对3种所测兽用消毒剂均敏感,其中聚维酮碘对RHDV2杀灭作用最好,作用30 min后,病毒杀灭率达88.78%。0.3%甲醛的杀灭率优于0.2%甲醛,作用30 min后,其杀灭率可达82.22%。[结论] 本研究探究了RHDV2的理化特性,该病毒对酸碱、高温、兽用消毒剂、甲醛均有不同程度的敏感性。本研究为RHDV2的诊断、临床消毒剂的选择提供了参考依据,为该病毒致病机理研究与疫苗研发奠定基础。

    Abstract:

    [Objective] The purpose of this study was to study the physicochemical properties of the virus RHDV2 and evaluate effect of different treatment to kill the virus. [Methods] The virus was identified by RT-PCR in rabbits with clinical suspected death from RHDV2 infection. The physicochemical properties of RHDV2 were studied by PMA-RT-qPCR at different pH, different temperatures, common veterinary disinfectants and different concentrations of formaldehyde. [Results] RHDV2 infection was confirmed by RT-PCR detection and sequencing analysis. The VP60 gene sequence of this strain was 98.35% consistent with RHDV2 in GenBank (MN276176.1). PMA-RT-qPCR results show that RHDV2 was sensitive to pH, high temperature, animal disinfectant and formaldehyde. The killing rate of virus increased with pH decreasing or increasing. The virus killing rate reached 77.61% after being treated at 65℃ for 30 min, and 95.10% after being treated at 83℃ for 5 min. RHDV2 is sensitive to all three animal disinfectants, among which povidone iodine had the best killing effect on RHDV2, the virus killing rate reached 88.78% after 30 min. The killing rate of 0.3% formaldehyde was better than 0.2%, and after 30 min of application, the killing rate could reach 82.22%. [Conclusion] RHDV2 is sensitive to acid and base, high temperature, animal disinfectant and formaldehyde to varying degrees.

    参考文献
    相似文献
    引证文献
引用本文

陈婉婷,周明忠,陈斌,张鹏飞,姜睿姣,曾红梅,涂藤,陈弟诗,杨泽晓,罗燕,姚学萍,王印. 兔出血症病毒2型理化特性研究. 微生物学报, 2021, 61(3): 707-713

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2020-05-28
  • 最后修改日期:2020-08-11
  • 录用日期:
  • 在线发布日期: 2021-03-05
  • 出版日期: