Abstract
A combined vaccine against Peste des Petits Ruminants (PPR) and Sheep/Goat Pox (SGP) was developed and applied in the field, using a new association of vaccine strains: PPR Nigeria 75 strain with a titre of 104.1 TCID50 and Sheep Pox Romania strain with a titre of 104.0 TCID50. Safety and efficacy were evaluated on goats and sheep in comparison with monovalent PPR and SGP vaccines. Goats were challenged by PPR virulent strain and sheep by SP virulent strain. The result shows that the combined PPR/SGP vaccine confers a good protection against both PPR and SGP infection with no significant difference with monovalent vaccines. The combined vaccine was used in the field on sheep flocks and good sero-conversion was detected for both diseases as soon as 14days post vaccination.
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