Heterologous prime-boost vaccination programs against Newcastle disease virus genotype VII in chickens

Heterologous prime-boost vaccination programs against Newcastle disease virus genotype VII in chickens

The effectiveness of two vectored ND vaccines (Innovax® ND and Vectormune® ND) was tested, in single and prime-boost vaccination programs, against challenge with velogenic NDV genotype VII, in eight chicken groups (G). G1 and G2 were control groups. G3–5 received Innovax® ND, while G6–8 received Vec...

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Veröffentlicht in:Comparative immunology, microbiology and infectious diseases microbiology and infectious diseases, 2022-08, Vol.87, p.101836-101836, Article 101836
Hauptverfasser: Sedeik, M.E., Awad, A.M., El-Shall, N.A.
Format: Artikel
Sprache:eng
Schlagworte:
Broiler
Chickens
Genotype VII
La Sota
Newcastle disease
Recombinant
Vaccination
Vaccine programs
Vectormune
Viral shedding
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Zusammenfassung:The effectiveness of two vectored ND vaccines (Innovax® ND and Vectormune® ND) was tested, in single and prime-boost vaccination programs, against challenge with velogenic NDV genotype VII, in eight chicken groups (G). G1 and G2 were control groups. G3–5 received Innovax® ND, while G6–8 received Vectormune® ND on the hatchery. Additionally, G4 and G7 received live La Sota two-weeks later, and G5 and G8 received inactivated vaccine one-week later. On the challenge day, G3 (Innovax® ND vaccine alone) had lower HI titer than G6 (Vectormune® ND vaccine alone) (p 
ISSN:0147-9571
1878-1667
DOI:10.1016/j.cimid.2022.101836