Affected species include other mammals and birds, giving influenza A the opportunity for a major reorganization of surface antigens.

HA creates a surface antigen that is especially important in transmissibility.

More specifically, immunolabeling of the fimbriae confirmed the existence of different surface antigens.

The gametocytes had low levels of polymorphic surface antigens.

FluMist is designed to be quickly modifiable to present the surface antigens of seasonal flu.

The crosslinking is most easily achieved using a polyvalent antibody to a surface antigen on the cell.

In negative selection the antibody used is against surface antigen(s) which are known to be present on cells that are not of interest.

Those types, known as serotypes, carry different surface antigens.

This is the most dominant surface antigen of the initial pre-erythrocytic phase.

This family of surface antigens is found in other apicomplexans.