|  | Serum IgG titersb in offspring |  |  | |||
---|---|---|---|---|---|---|---|
Plasmid | ELISA (2n)c | NI assay (2n)c | Lung virus titersb (log10 TCID50) | Survival offspring/Tested offspring (3 weeks) | |||
Plasmid for female mice | Plasmid for offspring | 21 days after primary immunization | 7 days after booster | 21 days after primary immunization | 7 days after booster | Â | Â |
30 μg HA | 30 μg HA | 15.0 ± 0.00 | 13.3 ± 0.60 |  |  | 4.3 ± 0.35 | 0/7 |
Unimmunized | 30 μg HA | 11.3 ± 0.50 | 14.3 ± 0.50 |  |  | 4.0 ± 0.58* | 5/7* |
30 μg NA | 30 μg NA |  |  | 5.6 ± 0.90 | 3.3 ± 0.60 | 4.0 ± 0.70 | 2/7 |
Unimmunized | 30 μg NA |  |  | 4.6 ± 0.60 | 8.5 ± 0.70 | 2.8 ± 0.35* | 7/7* |
Unimmunized | Unimmunized | <1 | <1 | <3 | <3 | 5.7 ± 0.00 | 0/7 |