TABLE 3.

SBA titers in the school entry and school leaver cohorts combined, categorized according to rSBA criteria of protection

rSBA titerSchool entry cohortSchool leaver cohort
No.(%)No.(%)
<86(1.9)5(1.1)
8-64
    Without fourfold rise00
    With fourfold rise19(4.6)8(1.8)
    No paired sera19(4.6)2(0.5)
≥128373(89.4)426(96.6)
Total417441