Volume 13, Number 11—November 2007
Research
Protection and Virus Shedding of Falcons Vaccinated against Highly Pathogenic Avian Influenza A Virus (H5N1)
Table 1
Titers (log2) of hemagglutination-inhibiting antibodies against homologous influenza H5 antigen in 10 Gyr-Saker hybrid falcons after vaccination*
Falcon no., vaccination route | Titer at 0–8 weeks after vaccination |
||||||||
---|---|---|---|---|---|---|---|---|---|
0† | 1 | 2 | 3 | 4‡ | 5 | 6 | 7 | 8 | |
1, IM | 0 | 0 | 0 | 2 | 4 | 5 | 6 | 6 | 7 |
2, IM | 0 | 0 | 0 | 2 | 3 | 4 | 6 | 8 | 9 |
3, IM | 0 | 0 | 0 | 2 | 5 | 6 | 7 | 8 | 8 |
4, IM | 0 | 0 | 0 | 3 | 4 | 4 | 6 | 7 | 6 |
5, IM | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 |
6, SC | 0 | 0 | 0 | 3 | 4 | 5 | 6 | 8 | 7 |
7, SC | 0 | 0 | 0 | 2 | 3 | 4 | 6 | 8 | 7 |
8, SC | 0 | 0 | 0 | 3 | 3 | 4 | 5 | 6 | 7 |
9, SC | 0 | 0 | 0 | 2 | 4 | 6 | 6 | 7 | 7 |
10, SC | 0 | 0 | 0 | 3 | 4 | 5 | 6 | 6 | 6 |
*Vaccination with an inactivated influenza (H5N2) vaccine (strain A/duck/Potsdam/1402/86) at a dose of 0.5 mL containing >4 log2 hemagglutinating units. IM, intramuscular; SC, subcutaneous.
†Time of first vaccination.
‡Time of booster vaccination.