Table 3.
Cross-reactivity of postinfection ferret sera against H3 influenza viruses in an HAI assaya
| Virus | Titer of ferret antisera raised against: |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| sw/CO/77 | sw/Ukk/84 | sw/ONT/ 01 | sw/IA/02 | eq/ROM/80 | eq/GA/81 | eq/Newm/03 | an-plath/SP/06 | npin/AK/06 | tl/TX/079/07 | mal/MN/0169/07 | |
| sw/CO/77 | 5,120 | 640 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| sw/Ukk/84 | 320 | 5,120 | 10 | 10 | 10 | 40 | 10 | 10 | 10 | 10 | 20 |
| sw/ONT/01 | 10 | 10 | 320 | 10 | 10 | 10 | 10 | 10 | 10 | 320 | 320 |
| sw/IA/02 | 10 | 10 | 10 | 320 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| eq/ROM/80 | 10 | 10 | 10 | 10 | 320 | 320 | 20 | 10 | 10 | 10 | 80 |
| eq/GA/81 | 10 | 10 | 10 | 10 | 640 | 1,280 | 80 | 10 | 10 | 10 | 160 |
| eq/Newm/03 | 10 | 10 | 10 | 10 | 10 | 640 | 320 | 10 | 10 | 10 | 320 |
| an-plath/SP/06 | 10 | 10 | 160 | 10 | 10 | 10 | 10 | 160 | 10 | 10 | 10 |
| npin/AK/06 | 10 | 10 | 10 | 10 | 10 | 10 | 80 | 40 | 160 | 10 | 20 |
| tl/TX/079/07 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 80 | 640 | 160 |
| mal/MN/0169/07 | 10 | 10 | 10 | 10 | 10 | 20 | 10 | 10 | 10 | 20 | 320 |
a
Homologous neutralizing antibody titers are indicated in boldface. Underlined titers indicate cross-reactive antisera with titers within 4-fold of homologous titers. The lower limit of detection was assigned a value of 10. Sera from 1 or 2 animals were collected at 28 days postinoculation. Antibody titers were determined in sera from 1 or 2 ferrets per virus by HAI assay.