›› 2009, Vol. 36 ›› Issue (4): 154-156.

• 疾病防治 • 上一篇    下一篇

H7亚型禽流感病毒灭活疫苗的研制及其免疫效果研究

史惠1,2,廖明2,罗开健2,任涛2,张桂红2   

  1. (1.福建省动物疫病预防控制中心,福州 350003;2.华南农业大学兽医学院,广州 510642)
  • 收稿日期:1900-01-01 修回日期:2008-09-17 出版日期:2009-04-20 发布日期:2009-04-20
  • 通讯作者: 廖明

Studies on Preparation and Immune Efficacy of H7 Subtype Avian Influenza Virus Inactivated Vaccine

SHI Hui1,2,LIAO Ming2,LUO Kai-jian2,REN Tao2,ZHANG Gui-hong2   

  1. (1.Fujian’s Center of Animal Disease Prevention and Control,Fujian 350003,China;2.College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China)
  • Received:1900-01-01 Revised:2008-09-17 Online:2009-04-20 Published:2009-04-20
  • Contact: LIAO Ming

摘要: 以H7N3亚型禽流感病毒接种鸡胚,收取鸡胚液为抗原研制禽流感病毒灭活疫苗,并对制苗抗原以及疫苗的物理性状、安全性、免疫效力、免疫剂量和保护期等进行了试验,结果表明,该灭活疫苗安全性好,对28日龄鸡的最佳免疫剂量为0.5 mL/只,抗体临界保护值为5log2,免疫后6周HI效价达到高峰值9.4log2,以后逐渐下降,第20周抗体仍能维持较高水平。此外,交叉免疫保护试验表明,同一亚型之间具有良好的免疫保护作用,而亚型间缺乏坚强的交叉保护作用。

关键词: 禽流感; H7亚型; 灭活疫苗; 免疫效果

Abstract: The H7N3 strain of avian influenza virus (AIV) was inoculated into chicken embryo, collected 72 h embryo fulid, after which it was inactivated and made into oil adjuvant vaccine.The antigen, physical characteristic, safety,efficacy, dosage were tested, according to the requirement of new biological product. Results showed the inactived vaccine was safe; its physical characterization was also fit for the requirement of the oil-adjuvant vaccine. 6 weeks later, the HI antibody rose to 29.4.The all vaccined poultry acquired protection challenged with AIV-H7N3 strain when HI antibody rose to 25, and the best immue dosage was 0.5 mL for each chick.The above results suggest that the vaccine can be used to prevent the epidemic of AIV-H7N3.

Key words: avian influenza; H7 subtype; inactivated vaccine; immune efficacy

中图分类号: