Identification of Influenza A/PR/8/34 Donor Viruses Imparting High Hemagglutinin Yields to Candidate Vaccine Viruses in Eggs
Fig 5
Ratio of viral protein from virions concentrated from allantoic fluid.
The molar ratio of (A) HA/NP and (B) HA/M1 of the concentrated viruses. The HA, NP and M yield of the viruses were determined by IDMS. Statistical significance: (*, P < 0.05; **, P < 0.01).