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Survival after intranasal challenge with A66.1 (clade 2, Fam1)
| Immunizing antigen | No. alive/total | % Survival | P value |
|---|---|---|---|
| Alum | 0/6 | 0 | |
| Fam1 | |||
| PspA1 | 3/6 | 50 | 0.09 |
| PspA2 | 5/6 | 83a | 0.008 |
| Fam2 | |||
| PspA3 | 2/6 | 33 | 0.23 |
| PspA4 | 6/6 | 100a | 0.001 |
| PspA5 | 4/6 | 67a | 0.03 |
Statistically significant difference from animals inoculated with alum (Fisher exact test).
