Table 1.

Proportions of IPV- and OPV-vaccinated persons with detectable poliovirus-specific antibodies in site 1- and site 3-specific assays

Assay result% of recipients with detectable antibodies
IPVOPV
Site 1 positive72.364.5
Site 3 positive63.188.7a
Sites 1 and 3 positive57.152.4
Site 1 positive and site 3 negative19.07.9
Site 1 negative and site 3 positive4.827.0a
Sites 1 and 3 negative19.012.7