Vaccine and/or immunogenic compositions that comprise an effective immunizing amount of an antigen from E. canis are described. In addition, methods of immunizing a subject against E. canis by providing the vaccine and/or immunogenic compositions are also disclosed.Linvention concerne un vaccin et/ou des compositions immunogènes qui comportent une quantité immunisante efficace dun antigène issu de E. canis. De plus, linvention concerne également des méthodes dimmunisation dun sujet contre E. canis par lapport du vaccin et/ou des compositions immunogènes.