[Progress in new-type vaccines against classical swine fever]
Chunhua Wang1, Yuan Sun, Huaji Qiu
1State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, Heilongjiang, China.
Sheng Wu Gong Cheng Xue Bao = Chinese Journal of Biotechnology
|November 8, 2013
Summary
Classical swine fever (CSF) poses a significant threat to the global pig industry. New DIVA (distinguish between infected and vaccinated animals) or marker vaccines are urgently needed due to current vaccine limitations and evolving disease characteristics.
Area of Science:
- Veterinary Virology
- Immunology
- Animal Health
Background:
- Classical swine fever (CSF) is a highly contagious and economically devastating disease affecting swine globally.
- Current live attenuated vaccines, while effective, face challenges including immunization failures and difficulty distinguishing vaccinated from infected animals (DIVA).
- Evolving clinical presentations of CSF, including atypical and persistent infections, necessitate improved control strategies.
Purpose of the Study:
- To review recent advances in novel vaccine technologies for Classical Swine Fever (CSF).
- To discuss the development of effective and safer DIVA or marker vaccines for CSF control.
- To highlight emerging vaccine platforms addressing current limitations in CSF prophylaxis.
Main Methods:
- Literature review of recent scientific publications on CSF vaccine development.
- Analysis of emerging vaccine types including DNA, viral-vectored, protein/peptide-based, gene-deleted, and chimeric pestivirus vaccines.
- Discussion of the advantages and challenges associated with these novel vaccine platforms.
Main Results:
- Several new vaccine types show promise for CSF control, offering potential DIVA capabilities.
- DNA vaccines, live virus-vectored vaccines, protein/peptide-based vaccines, gene-deleted vaccines, and chimeric pestivirus-based vaccines are under active investigation.
- These advanced vaccines aim to overcome limitations of traditional vaccines, such as distinguishing between wild-type infected and vaccinated animals.
Conclusions:
- There is an urgent need for improved CSF vaccines that are both effective and allow for differentiation of infected from vaccinated animals (DIVA).
- Novel vaccine strategies reviewed offer promising alternatives to traditional methods, addressing current challenges in CSF control.
- Continued research and development in these advanced vaccine platforms are crucial for mitigating the economic impact of Classical Swine Fever.
