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OAc+ serogroup C-specific IgG levels above or below 2 μg/ml categorized by serological correlate criteria according to rSBA titer for school entry and school leaver children combined
| OAc+ IgG level of >2 μg/ml | No.
|
||
|---|---|---|---|
| Protecteda | Not protected | Total | |
| Yes | 749 | 6 | 755 |
| No | 22 | 5 | 27 |
| Total | 771 | 11 | 782 |
SBA titer of ≥128 or SBA titer of 8 to 64 with a fourfold rise in rSBA (excludes sera with rSBA titers of 8 to 64 and no prevaccination sample).
