Table 3. Survival of C3H/HePas and C3H/HeJ mice after intranasal challenge with S. pneumoniae ATCC6303.

C3H/HePas	alive/total	% of survival	P *
Non-immunized	1/9	11.1	---
wP	2/10	20	0.54
PspA5	4/10	40	0.18
PspA5- wP	10/10	100	0.0001
C3H/HeJ
Non-immunized	0/9	---	---
wP	0/10	---	---
PspA5	4/10	40	0.054
PspA5- wP	9/10	90	0.0001

^*Fisher exact test.