Osterhaus, A.D.M.E.

virus infection vaccine fluenza antibody influenza response study patient protein group animal sample assay vaccination disease strain antigen sequence result level virol table serum number epitope measles control fluenza virus titer netherland expression analysis challenge osterhau peptide children detection macaque culture replication immunity fluenza viruses tissue protection pandemic model blood t-cell clone influenza virus difference region population method presence figure immunization species vaccinated virology speci plasma variant subtype value effect activity class immunol elisa tract experiment signi cytotoxic mutation iscom transmission dengue human