HA (Influenza A Virus Hemagglutinin) Antibody Host:Rabbit Antibody Type:Polyclonal Species Reactivity:Human, mouse, rat Application:Western blot Western blotting (0.5-4 μg/ml). However, the optimal conditions should be determined individually. The antibody recognizes ~28 kDa HA in samples from human, mouse and rat origins. Reactivity to other species has not been tested.