TABLE 2.
Airborne transmission study of reassortant viruses with the SH7 backbone and one gene from SH14
| Virus and group | Virus shedding on daya: |
Seroconversionb (HI titer) | |||
|---|---|---|---|---|---|
| 3 | 5 | 7 | 9 | ||
| 7-14PB2 | |||||
| Inoculated | 2/3 | 3/3 | 2/3 | 0/3 | 3/3 (1,280, 1,280, 1,280) |
| Exposed | 1/3 | 2/3 | 3/3 | 3/3 | 3/3 (320, 320, 640) |
| 7-14PB1 | |||||
| Inoculated | 2/3 | 3/3 | 3/3 | 0/3 | 3/3 (320, 640, 1,280) |
| Exposed | 1/3 | 3/3 | 3/3 | 2/3 | 3/3 (80, 160, 160) |
| 7-14PA | |||||
| Inoculated | 2/3 | 3/3 | 3/3 | 0/3 | 3/3 (320, 640, 640) |
| Exposed | 0/3 | 0/3 | 0/3 | 0/3 | 0/3 (<10, <10, <10) |
| 7-14HA | |||||
| Inoculated | 1/3 | 3/3 | 2/3 | 0/3 | 3/3 (1,280, 1,280, 1,280) |
| Exposed | 0/3 | 0/3 | 0/3 | 0/3 | 0/3 (<10, <10, <10) |
| 7-14NP | |||||
| Inoculated | 3/3 | 3/3 | 2/3 | 0/3 | 3/3 (320, 320, 320) |
| Exposed | 0/3 | 1/3 | 2/3 | 0/3 | 2/3 (<10, 40, 80) |
| 7-14NA | |||||
| Inoculated | 3/3 | 3/3 | 2/3 | 0/3 | 3/3 (1,280, 1,280, 1,280) |
| Exposed | 0/3 | 1/3 | 3/3 | 1/3 | 3/3 (80, 80, 160) |
| 7-14M | |||||
| Inoculated | 3/3 | 2/3 | 3/3 | 0/3 | 3/3 (640, 1,280, 1,280) |
| Exposed | 2/3 | 2/3 | 3/3 | 2/3 | 3/3 (160, 320, 320) |
| 7-14NS | |||||
| Inoculated | 3/3 | 3/3 | 2/3 | 0/3 | 3/3 (640, 640, 1,280) |
| Exposed | 0/3 | 0/3 | 2/3 | 1/3 | 3/3 (20, 40, 80) |
a
The number of days after chickens were inoculated/exposed. Data are numbers of chickens shedding virus/total number of chickens.
b
HI antibody titers of chickens on day 21 postinoculation/postexposure.