Table 4. HI titers of chicken sera at 0 and 14 days after the challenge with Kumamoto strain.
Group | Chicken No. | HI titers on the days after challenge | |||
---|---|---|---|---|---|
0a) | 14a) | ||||
Vac-1b) | Kum/14c) | Vac-1 | Kum/14 | ||
Vaccine | 605 | 256 | <4 | 256 | 8 |
611 | 256 | <4 | 256 | 16 | |
613 | 256 | 4 | 256 | 16 | |
615 | 256 | 8 | 256 | 16 | |
617 | 256 | <4 | 256 | 8 | |
619 | 512 | <4 | 512 | 4 | |
624 | 256 | 8 | 256 | 8 | |
629 | 256 | <4 | 512 | 8 | |
635 | 512 | 4 | 512 | 8 | |
638 | 256 | <4 | 256 | 4 | |
Negative controld) | 610 | <4 | <4 | NT | NT |
618 | <4 | <4 | NT | NT | |
619 | <4 | <4 | NT | NT | |
Positive controle) | 600 | 256 | <4 | 256 | <4 |
606 | 256 | 4 | 256 | 4 |
NT; Not tested, a) Days of bleeding after challenge, b) A/duck/Hokkaido/Vac-1/2004 (H5N1), c) A/chicken/Kumamoto/1-7/2014 (H5N8), d) Not vaccinated and challenged., e) Vaccinated and not challenged.