In another meaning, does bovine serum albumin have any role in attachment/entry phase of avian influenza virus during virus replication cycle? does this modulate virus uptake?
BSA is important for maintenance of MDCK cells during the long time incubation (2-4 days) of plaque assay. Not all versions of commercial BSA can be used as some can interfere with TPCK action. I am not sure if BSA can have additional role in such viral attachment/entry mechanism.