Shaib H.A.; Cochet N.; Ribeiro T.; Abdel Nour A.M.; Nemer G.; Barbour E.K.
(, 2010)
Background: Highly virulent Avian Influenza viruses might arise from avirulent strains following viral passaging. This work aims at studying the impact of embryonic passaging of H9N2 on the stability of the HA1 amino acid ...