TABLE 5.

Antigenic characterization of wild-type and mouse-adapted H1N1 influenza viruses by hemagglutination inhibition assay

H1N1 virusTitera
Goat antiserum against A/CA/04/09Ferret antiserum against:MAb against:
A/CA/04/09A/TN/1-560/09A/Brisbane/59/07A/Swine/AR/ 2976/02A/Swine/NC/ 18161/02
H5G7E2H7
A/CA/04/096402,560640<40100<100200100
A/CA/04/09-MA164032080<40<100<100800400
A/CA/04/09-MA2640320160<40<100<100800200
A/TN/1-560/096402,560640<40<100<100400200
A/TN/1-560/09-MA11,280>5,1201,280<401001008001,600
A/TN/1-560/09-MA21,280>5,1201,280<40<100<100800800
  • a Values are expressed as reciprocals of serum/antibody dilutions that inhibited 8 hemagglutination units of H1N1 influenza virus. Homologous HI titers are shown in bold type.