Research Article

Three Types of Broadly Reacting Antibodies against Influenza B Viruses Induced by Vaccination with Seasonal Influenza Viruses

Figure 6

Immunostaining of cells that express HA1 molecule on the cell surface. Fab-PP form of Abs, F113-135 (type 1), F113-133 (type 1), and F113-106 (type 2) bound to HA1 expressed on the cell surface. Positive control: 3A12, anti-B/HA Ab, 2-3E (Fab-PP form), anti-rota VP4 Ab, anti-myc Ab for system check. Mock, pDisplay vector without insert was used for transfection.