The invention relates to a composition of immunoglobulins that is hyper-enriched in at least two populations of immunoglobulins, each population consisting of immunoglobulins specifically directed against a distinct virus.Linvention a trait à une composition dimmunoglobulines hyper-enrichie en au moins deux populations dimmunoglobulines, chaque population consistant en des immunoglobulines dirigées spécifiquement contre un virus distinct.