The invention relates to immunogenic synthetic constructs capable of inducing an immune response against Campylobacter jejuni (C. jejuni) in a subject comprising one or more monosaccharides comprising one or more MeOPN moieties. Specifically, the invention relates to immunogenic synthetic constructs capable of inducing an immune response against C. jejuni in a subject comprising one or more MeOPN-6-Gal monosaccharides, one or more MeQPN-4-Gal monosaccharides, and/or one or more MeOPN-2-Gal monosaccharides. The invention also relates to compositions comprising the immunogenic synthetic constructs, and methods of inducing an immune response against C. jejuni in a subject comprising administering the immunogenic synthetic constructs, and/or compositions comprising the immunogenic synthetic constructs, to the subject. Methods of treating, preventing, or ameliorating a C. jejuni bacterial infection in a subject comprising administering to the subject one or more doses of immunoglobulins directed to one or more of the MeOPN moieties are also contemplated.L'invention concerne des constructions immunogènes synthétiques capables d'induire une réponse immunitaire contre Campylobacter jejuni (C. jejuni) chez un sujet, comprenant un ou plusieurs monosaccharides comprenant un ou plusieurs groupements MeOPN. Spécifiquement, l'invention concerne des constructions synthétiques capables d'induire une réponse immunitaire contre C. jejuni chez un sujet, comprenant un ou plusieurs monosaccharides MeOPN-6-Gal, un ou plusieurs monosaccharides MeQPN-4-Gal, et/ou un ou plusieurs monosaccharides MeOPN-2-Gal. L'invention concerne également des compositions comprenant les constructions synthétiques immunogènes, et des méthodes d'induction d'une réponse immunitaire contre C. jejuni chez un sujet, comprenant l'administration au sujet des constructions synthétiques immunogènes et/ou des compositions comprenant les constructions synthétiques immunogènes. Des méthodes pour traiter, prévenir ou amé
