What benefit has Poulvac FluFend H5N3 RG shown during the studies? • The studies showed that the birds which receive the vaccine develop antibodies against the H5 subtype of the avian influenza virus. • The vaccine has been shown to prevent clinical signs and mortality and reduce virus shedding in infected chickens and ducks. • If the circulating avian influenza field virus has a different N component to the N3 included in the vaccine, it may be possible to differentiate between vaccinated and infected birds by using a diagnostic test to detect specific Neuraminidase antibodies.