PROCEDES AMELIORES POUR L'INACTIVATION D'ENTEROVIRUS ET L'ABSORPTION D'ADJUVANT ET COMPOSITIONS DE VACCIN A DOSES REDUITES OBTENUES AU MOYEN DE CES PROCEDES
The present invention is directed to improved methods of Enterovirus inactivation by formaldehyde in presence of tromethamine buffer resulting in maximum recovery of D-antigen. Subsequent adsorption of said sIPV on aluminium hydroxide provides significantly dose reduced sIPV compositions.