Table 2 Antigenic characterization of wild-type and mutant H1N1 influenza A viruses by HI assay
H1N1 virus | Titer a | |||||||
|---|---|---|---|---|---|---|---|---|
Goat antiserum against CA/04 | Ferret antiserum against: | mAbs against CA/04: | ||||||
CA/04 | A/CA/07/09 | A/TN/1–560/09 | 28665 | 28666 | 28667 | 28668 | ||
CA/04V152I | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
CA/04G155E | -3 | -3 | -3 | -3 | >-5 | 1 | 1 | >-6 |
CA/04S162N | 1 | 0 | 1 | 0 | 0 | 1 | −1 | 0 |
CA/04S183P | 0 | 0 | 0 | 0 | -2 | −1 | -1 | 0 |
CA/04D222G | −2 | − 6 | −3 | − 4 | >-5 | 0 | 0 | >-6 |