Table 4.
HI titers to NDV at day pre-challenge and virus detection in visceral organs from different rFPV immunized groups on day 5 p.c.
| Vaccine group | HI titer ± standard deviation a | Virus detection (positive/total) c | ||||||
|---|---|---|---|---|---|---|---|---|
| Go/JS6/05 | La Sota | Liver | Brain | Spleen | Kidney | Trachea | Lung | |
| rFPV-JS6HN | 3.80 ± 0.92 b | 3.30 ± 1.16 | 0/6 | 3/6 | 3/6 | 4/6 | 0/6 | 2/6 |
| rFPV-LaSHN | 1.50 ± 0.85 | 3.90 ± 0.57 | 0/6 | 5/6 | 6/6 | 4/6 | 0/6 | 5/6 |
a HI titers to Go/JS6/05 or La Sota were evaluated on day 21 post vaccination.
b titers to homologous antigens were noted in bold.
c Virus replication was detected on day 5 post challenge by inoculation into 10-day-old SPF embryonated chicken eggs.