Table 4.

Numbers and percentages of subjects with protective (> 1: 8) and non-protective (<1: 8) antibodies, percentages of subjects without antibodies to one or more of the polioviruses and GMTs by age class

Age	Subjects (No.)	Poliovirus 1			Poliovirus 2			Poliovirus 3			All strains
		titres ≥1:8	titres <1:8	GMT	titres ≥1:8	titres <1:8	GMT	titres ≥1:8	titres <1:8	GMT	triple positives	triple negatives
< 2 years	23	82.6%	17.4%	70.1	87.0%	13.0%	40.7	65.2%	34.8%	14.6	65.2%	13.0%
2 - 6 years	263	96.6%	3.4%	79.6	95.1%	4.9%	47.8	87.8%	12.2%	28.0	86.3%	1.9%
7 - 18 years	1,679	94.0%	6.0%	42.5	92.3%	7.7%	27.8	84.6%	15.4%	18.9	78.5%	0.9%
=>19 years	155	90.3%	9.7%	34.5	73.1%	6.1%	25.1	87.1%	12.9%	22.2	76.1%	2.6%
Overall	2,120	94.0%	6.0%	45.5	88.4%	11.6%	29.6	85.0%	15.0%	20.0	79.2%	1.3%