Preparation and efficacy of freeze-dried inactivated vaccine against bovine viral diarrhea virus genotypes 1 and 2, bovine herpes virus type 1.1, bovine parainfluenza-3 virus, and bovine respiratory syncytial virus

Maha Raafat Abd El Fadeel; Ashraf Taha El-Dakhly; Ahmad Mohammad Allam; Tarek Korany Farag; Alaa Abdel-Moneim El-kholy

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자료유형: 학술저널

저자정보: Maha Raafat Abd El Fadeel (Veterinary Serum and Vaccine Research Institute Agriculture Research Center) Ashraf Taha El-Dakhly (Veterinary Serum and Vaccine Research Institute Agriculture Research Center) Ahmad Mohammad Allam (Veterinary Research Division National Research Centre) Tarek Korany Farag (Veterinary Research Division National Research Centre) Alaa Abdel-Moneim El-kholy (Veterinary Serum and Vaccine Research Institute Agriculture Research Center)

저널정보: 대한백신학회 Clinical and Experimental Vaccine Research Clinical and Experimental Vaccine Research Vol.9 No.2

발행연도: 2020.1

수록면: 119 - 125 (7page)

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Purpose: Bovine respiratory disease is a worldwide health concern in the feedlot cattle causing morbidity and mortality in young with major economic losses to the producer. Programs of vaccination are integral parts of preventive health programs. We aim to prepare and evaluate lyophilized combined inactivated viruses (bovine viral diarrhea virus [BVDV] genotypes 1 and 2, bovine herpes virus type 1.1 [BoHV-1.1], bovine parainfluenza-3 virus [BPI-3V], and bovine respiratory syncytial virus [BRSV]) vaccine using saponin as a solvent and adjuvant in cattle. Materials and Methods: Lyophilized Pneumo-5 vaccine was formulated to include the inactivated BVDV genotypes 1 and 2, BoHV-1.1, BPI-3V, and BRSV. The saponin solution was used as an adjuvant and solvent. The prepared vaccines were adjusted to contain 1- and 1.5-mg saponin/dose. It was evaluated for its sterility, safety, and potency in mice and calves. The antibody titers in vaccinated calves were measured by virus neutralization test and enzyme-linked immunosorbent assay (ELISA). Results: The Pneumo-5 vaccine was found to be free from any contaminants and safe in mice. Meanwhile, the vaccine showed safety in calves which inoculated intramuscularly with the double dose of the vaccines. The overall immune response reached its peak in the 2nd-month post-vaccination. The vaccine contained saponin 1.5 mg/dose reached its antibodies peak in the 4th-week post-vaccination. All groups of vaccinated calves with both concentrations of the saponin did not show statistical significance in antibody titers measured by serum neutralization test and/or ELISA. Conclusion: The prepared vaccine, namely Pneumo-5, and adjuvanted with either 1 or 1.5 mg/dose saponin was proved safe and potent for effectual protection of calves against BVDV genotypes 1 and 2, BoHV-1.1, BPI-3V, and BRSV.

#Bovine respiratory disease #Viral vaccines #Inactivated vaccines #Freeze drying #Saponins

참고문헌 (34)

참고문헌 신청

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