Disclosed are compositions, comprising one or more immunogens, wherein each immunogen comprises at least two regions, wherein one region comprises at least one amyloid-β (Aβ) B cell epitope or at least one Tau B cell epitope or at least one α-synuclein B cell epitope or combinations thereof, and a second region comprises at least one foreign T helper cell (Th) epitope, and usually multiple foreign Th epitopes. Methods of making and using the compositions are also disclosed.
