METHOD FOR PREPARING AN INFLUENZA VIRUS, ANTIGENS OBTAINED AND APPLICATIONS THEREOF

摘要

Method for preparing purified influenza antigens from a fluid containing influenza virus, comprising the steps of concentration, purification, fragmentation and, where appropriate, inactivation, characterized in that: A. either the purification step entails several ultra-centrifugation steps separated by a filtration step, B. or the fragmentation step is performed on the live virus in the presence of an amphiphilic nonionic detergent, followed by a removal of undesirable substances by filtration, retaining all of the viral constituents, or these two steps are carried out in any order.