Efficacy of Inactivated PRRSV Vaccine
Author Information
Author(s): Kim Hyunil, Kim Hye Kwon, Jung Jung Ho, Choi Yoo Jung, Kim Jiho, Um Chang Gyu, Hyun Su Bin, Shin Sungho, Lee Byeongchun, Jang Goo, Kang Bo Kyu, Moon Hyoung Joon, Song Dae Sub
Primary Institution: Optifarm Solution Inc.
Hypothesis
Can inactivated PRRSV vaccines effectively induce immune responses in pigs?
Conclusion
The inactivated vaccine failed to show humoral immunity but showed different immune responses after the challenge compared to the mock group.
Supporting Evidence
- The vaccinated groups showed significantly greater VN titers 22 days after challenge.
- All groups were serologically negative before challenge.
- Vaccinated groups produced antibodies faster than the non-vaccinated group after challenge.
Takeaway
Scientists tested a pig vaccine to see if it could help pigs fight a virus, but it didn't work as well as they hoped.
Methodology
Pigs were vaccinated with different concentrations of inactivated PRRSV and then challenged with the virus to measure immune responses.
Potential Biases
Potential bias in the selection of vaccine strains and methods of evaluation.
Limitations
The study did not assess long-term immunity and the effectiveness of the vaccine against genetically diverse PRRSV strains.
Participant Demographics
Twenty-eight SPF hairless white Yucatan miniature pigs were used.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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