Recent vaccine technology in industrial animals

Area of Science:

• Veterinary Vaccinology
• Molecular Virology
• Biotechnology

Background:

• Traditional vaccines face challenges in controlling emerging animal diseases.
• Novel vaccine platforms are crucial for rapid and effective disease intervention.
• Porcine circovirus type 2 and porcine epidemic diarrhea pose significant threats to swine health.

Purpose of the Study:

• To evaluate the efficacy of virus-like particle (VLP) vaccines against porcine circovirus type 2.
• To assess the potential of alphavirus-based RNA particle vaccines for controlling porcine epidemic diarrhea (PED).
• To explore novel vaccine technologies for efficient animal disease management.

Main Methods:

• Manufacturing of virus-like particle (VLP) vaccines for porcine circovirus type 2.
• Development of RNA particle vaccines using a Venezuela equine encephalitis (VEE) virus vector for PED.
• Genetic engineering of the VEE vector by substituting the spike gene of the PED virus for recombinant vaccine production.

Main Results:

• VLP vaccines, despite being inactivated, elicit long-term and cell-mediated immunity due to their structural similarity to native viruses.
• RNA particle vaccines utilizing a VEE virus vector enable efficient production of recombinant vaccines by gene substitution.
• Both VLP and RNA particle vaccine technologies demonstrated potential for rapid and efficient control of the targeted infectious diseases.

Conclusions:

• Virus-like particle (VLP) and RNA particle vaccines represent promising advancements in veterinary vaccinology.
• These novel platforms offer effective strategies for controlling significant animal pathogens like porcine circovirus and PED.
• The adaptability of these technologies facilitates the development of targeted vaccines for diverse animal diseases.