Figure 3From: Enhanced replication of avian-origin H3N2 canine influenza virus in eggs, cell cultures and mice by a two-amino acid insertion in neuraminidase stalk Replication kinetics of r-06 and r-06/NA2 strains in MDCK, CEF and CBE cell cultures. MDCK, CEF and CBE cells were infected at an MOI of 0.001, 0.01 and 0.01, respectively. Supernatants were collected at 12, 24, 48, 60 and 72 h post-infection, and viral titers were determined as log10 pfu/mL in MDCK cells. *P < 0.05, **P < 0.01, ***P < 0.005.Back to article page