Brucella melitensis Rev.1 vaccination generates a higher shedding risk of the vaccine strain in Alpine ibex (Capra ibex) compared to the domestic goat (Capra hircus).

Autor: Ponsart C; EU/OIE/FAO & National Reference Laboratory for Animal Brucellosis, Animal Health Laboratory, ANSES/Paris-Est University, 94706, Maisons-Alfort, France., Riou M; UE-1277 Plateforme d'Infectiologie expérimentale (PFIE), INRA Centre Val de Loire, 37380, Nouzilly, France. mickael.riou@inra.fr., Locatelli Y; Réserve Zoologique de la Haute Touche, Muséum National d'Histoire Naturelle (MNHN), 36290, Obterre, France., Jacques I; Département Génie Biologique, Institut Universitaire Technologique (IUT), Université de Tours, 29 Rue du Pont Volant, 37082, Tours Cedex 2, France.; UMR-1282 Infectiologie et Santé Publique (ISP), INRA Centre Val de Loire - Université de Tours, 37380, Nouzilly, France., Fadeau A; Laboratoire de Touraine, Conseil départemental d'Indre-et-Loire, B.P. 67357, 37073, Tours Cedex 02, France., Jay M; EU/OIE/FAO & National Reference Laboratory for Animal Brucellosis, Animal Health Laboratory, ANSES/Paris-Est University, 94706, Maisons-Alfort, France., Simon R; Réserve Zoologique de la Haute Touche, Muséum National d'Histoire Naturelle (MNHN), 36290, Obterre, France., Perrot L; EU/OIE/FAO & National Reference Laboratory for Animal Brucellosis, Animal Health Laboratory, ANSES/Paris-Est University, 94706, Maisons-Alfort, France., Freddi L; EU/OIE/FAO & National Reference Laboratory for Animal Brucellosis, Animal Health Laboratory, ANSES/Paris-Est University, 94706, Maisons-Alfort, France., Breton S; UE-1277 Plateforme d'Infectiologie expérimentale (PFIE), INRA Centre Val de Loire, 37380, Nouzilly, France., Chaumeil T; UE-1277 Plateforme d'Infectiologie expérimentale (PFIE), INRA Centre Val de Loire, 37380, Nouzilly, France., Blanc B; Réserve Zoologique de la Haute Touche, Muséum National d'Histoire Naturelle (MNHN), 36290, Obterre, France., Ortiz K; Réserve Zoologique de la Haute Touche, Muséum National d'Histoire Naturelle (MNHN), 36290, Obterre, France., Vion C; Réserve Zoologique de la Haute Touche, Muséum National d'Histoire Naturelle (MNHN), 36290, Obterre, France., Rioult D; Université de Reims Champagne-Ardenne, 9 Boulevard de la Paix, 51100, Reims, France., Quéméré E; Unité Comportement et Écologie de la Faune Sauvage (CEFS), INRA, 24 chemin de Borde-Rouge-Auzeville CS 52627, 31326, Castanet-Tolosan Cedex, France., Sarradin P; UE-1277 Plateforme d'Infectiologie expérimentale (PFIE), INRA Centre Val de Loire, 37380, Nouzilly, France., Chollet JY; Unité sanitaire de la Faune, Direction de la Recherche et de l'Expertise (DRE), Office National de la Chasse et de la Faune Sauvage (ONCFS), 5 rue de Saint-Thibaud, Saint-Benoît, 78610, Auffargis, France., Garin-Bastuji B; European and International Affairs Department, ANSES, 94701, Maisons-Alfort, France., Rossi S; Unité sanitaire de la Faune, Direction de la Recherche et de l'Expertise (DRE), Office National de la Chasse et de la Faune Sauvage (ONCFS), 5 rue de Saint-Thibaud, Saint-Benoît, 78610, Auffargis, France.
Jazyk: angličtina
Zdroj: Veterinary research [Vet Res] 2019 Nov 27; Vol. 50 (1), pp. 100. Date of Electronic Publication: 2019 Nov 27.
DOI: 10.1186/s13567-019-0717-0
Abstrakt: Epidemiological investigations implemented in wild and domestic ruminants evidenced a reservoir for Brucella in Capra ibex in the French Alps. Vaccination was considered as a possible way to control Brucella infection in this wildlife population. Twelve ibexes and twelve goats were allocated into four groups housed separately, each including six males or six non-pregnant females. Four to five animals were vaccinated and one or two animals were contact animals. Half of the animals were necropsied 45 days post-vaccination (pv), and the remaining ones at 90 days pv. Additional samples were collected 20 and 68 days pv to explore bacterial distribution in organs and humoral immunity. Neither clinical signs nor Brucella-specific lesions were observed and all vaccinated animals seroconverted. Brucella distribution and antibody profiles were highly contrasted between both species. Proportion of infected samples was significantly higher in ibex compared to goats and decreased between 45 and 90 days pv. Two male ibex presented urogenital excretion at 20 or 45 days pv. The bacterial load was higher 45 days in ibexes compared to goats, whereas it remained moderate to low 90 days pv in both species with large variability between animals. In this experiment, differences between species remained the main source of variation, with low impact of other individual factors. To conclude, multiplicative and shedding capacity of Rev.1 was much higher in ibex compared to goats within 90 days. These results provide initial information on the potential use in natura of a commercial vaccine.
Databáze: MEDLINE
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