T. lt; P gt; present invention; oacute; n refers to a vaccine for the prevention of swine mottled mumps virus and S amp virus; Iacute; pig's reproductive respiratory system (ndrome) to protect a person, preferably a pig, from diseases caused by swine mottled mumps virus and S amp virus; Iacute; pig's reproductive respiratory system (ndrome). 1. The invention refers to M amp; oacute; n ADEM amp; Aacute; s refers to M amp; eacute; all production immunity and amp; oacute; Genas a S amp; Iacute; tambi amp; eacute; n immunity and amp; oacute; Genas, the bactericidal activity of these compounds is reduced; lt; / P gt;<;p>;LA PRESENTE INVENCIÓ;N SE REFIERE A UNA VACUNA CONTRA EL PARVOVIRUS PORCINO Y EL VIRUS DEL SÍ;NDROME RESPIRATORIO REPRODUCTIVO PORCINO PARA PROTEGER A UN SUJETO, PREFERENTEMENTE, UN CERDO, CONTRA ENFERMEDADES ASOCIADAS AL PARVOVIRUS PORCINO Y AL VIRUS DEL SÍ;NDROME RESPIRATORIO REPRODUCTIVO PORCINO. LA PRESENTE INVENCIÓ;N ADEMÁ;S SE REFIERE A MÉ;TODOS PARA PRODUCIR COMPOSICIONES INMUNÓ;GENAS ASÍ; COMO TAMBIÉ;N A DICHAS COMPOSICIONES INMUNÓ;GENAS QUE EXHIBEN ACTIVIDAD VIRICIDA REDUCIDA.<;/p>;