The present invention relates to a method for formulating a vaccine composition which comprises an anti-influenza vaccine, wherein the improvement of the vaccine composition is that the vaccine includes, as an additive, neuraminidase (NA). The base anti-influenza vaccine can be any commercially available anti-influenza vaccine. The improved composition can include and be administered with an adjuvant. The improved vaccine composition provides protection in a host, animal or human, against influenza infection, including viral replication and systemic infection.