Driel, H. van

virus influenza strain influenza virus / x 31 ph-threshold haemolysi amantadine t h e experiment fusion assay lysosomal ph change susceptibility virol influenza viruses 5.5 semliki forest virus mutant control / x 31-1 influenza virus strains virus titres study amt-susceptibility membrane llc-mk 2- cells production virus production h e n membrane fusion beyer 0.1 table 31- dilution virology recombinant inhibition difference 6.0 resistance segment 5.3 kidney haemagglutination semliki 1.6 maintenance medium medium ha-gene influenza strains monkey haemolysis assay /x 31-1 chicken erythroeytes 31-1 skehel reference strains cell biol laboratory result lysosomal susceptibility assay 1 hour chicken n l y titre w.e.p n t p u.s.a n t r r e e r e g table 3. influenza n g k value target n g e