Immunization | Challenge strainsa | Protection rate (%)b | Geomean of three protection rates (%) | SD of three protection rates |
---|---|---|---|---|
Inactivated RA1062 vaccine | WJ4 | 100.0; 100.0; 100.0 | 100.00 | 0.00 |
Yb2 | 87.5; 75.0; 75.0 | 78.95 | 7.22 | |
HXb2 | 100.0; 100.0; 100.0 | 100.00 | 0.00 | |
Inactivated CH3 vaccine | WJ4 | 87.5; 100.0; 100.0 | 95.65 | 7.22 |
Yb2 | 25.0; 25.0; 25.0 | 25.00 | 0.00 | |
HXb2 | 50.0; 50.0; 50.0 | 50.00 | 0.00 | |
Non-vaccinated | WJ4 | 0; 0; 0 | 0.00 | 0.00 |
Yb2 | 0; 0; 0 | 0.00 | 0.00 | |
HXb2 | 0; 0; 0 | 0.00 | 0.00 |