Table 2.
Contingency table comparing the numbers of vaccine type invasive pneumococcal disease cases 9 wk after carrier primed and non-carrier primed dose of the 7-valent pneumococcal conjugate vaccine among non-Indigenous Australian infants (2001-2006)
| Two weeks after dose of 7vPCV | 2-9 wk after dose of 7vPCV | |
| Number of VT-IPD cases after carrier primed 7vPCV | 4 | 1 |
| Number of VT-IPD cases after non-carrier primed 7vPCV | 2 | 6 |
| 1P value | 0.08 | |
1
One-sided fisher’s exact test. 7vPCV: 7-valent pneumococcal conjugate vaccine; VT-IPD: Vaccine type invasive pneumococcal disease.