TABLE 2.

Distribution of rSBA titers in an unvaccinated population

SBA titerNo. of individuals
Infants (age, 3-11 mo)Toddlers (age, 12-23 mo)Preschool children (age, 2-4 yr)
<4142225189
4686
85112
16542
32264
64341
128+695
    Total169267209