Objective Preparation of specific transfer factor (TF) of avian influenza virus (AIV) and approach of immunopotentiation action to avian influenza vaccinum inactivatum.
As a rule the swine infested with the lungworms carrying the "masked virus" did not develop swine influenza immediately upon infestation with the lungworm.
Neuraminidase is a kind of glycosidoprotein, it resides the surface of influenza virus A and B-, and plays a key part in the process of virus duplication and infection.