République Tunisienne  
Ministère de l'Agriculture, des Ressources Hydrauliques et de la Pêche

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Comparative evaluation of three capripoxvirus-vectored peste des petits ruminants vaccines>   Description

 
Date de publication 2018
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Comparative evaluation of three capripoxvirus-vectored peste des petits ruminants vaccines

Auteur  F. Fakri, Z. Bamouh, F. Ghzal, W. Baha, K. Tadlaoui, O. Fassi Fihri, W. Chen, Z. Bu, M. Elharrak
Mots clés

capripoxvirus vector, peste des petits ruminants, Sheep and goat pox, recombinant vaccine

Résumé

 Sheep and goat pox (SGP) with peste des petits ruminants (PPR) are transboundary viral diseases of small ruminants that cause huge economic losses. Recombinant vaccines that can protect from both infections have been reported as a promising solution for the future. SGP was used as a vector to express two structural proteins hemagglutinin or the fusion protein of PPRV. We compared immunity conferred by recombinant capripoxvirus vaccines expressing H or F or both HF. Safety and efficacy were evaluated in goats and sheep. Two vaccine doses were tested in sheep, 104.5TCDI50 in 1 ml dose was retained for the further experiment. Results showed that the recombinant HF confers an earlier and stronger immunity against both SGP and PPR. This recombinant vaccine protect also against the disease in exposed and unexposed sheep. The potential Differentiating Infected from Vaccinated Animals of recombinant vaccines is of great advantage in any eradication program.

 

Lu 3202 fois Dernière modification le lundi, 25 juin 2018 16:13