Table 2. Percentages (%) of children with a positive PT-, FHA- and Prn- specific IgA- memory B-cell response in the infected and healthy Dutch wP primed and aP primed children of different ages (number of children per group).

	Infected	Dutch wP at 2, 3, 4 and 11 months								aP at 2, 3, 4 and 11 months
age	1–10	3	4	4	4	6	9	9	9	4	4	4	6
post-booster	-	-	-	10 days	28 days	-	-	28 days	1 year	-	10 days	28 days	-
PT B-cells	70% (10)	42% (12)	62% (13)	38% (8)	45% (11)	45% (11)	58% (12)	63% (8)	60% (10)	43% (7)	50% (10)	29% (17)	21% (14)
FHA B-cells	70% (10)	22% (9)	54% (13)	17% (6)	29% (7)	50% (12)	33% (6)	60% (5)	40% (5)	80% (5)	13% (8)	33% (12)	50% (14)
Prn B-cells	80% (10)	77% (13)	71% (14)	44% (9)	73% (11)	50% (12)	50% (12)	75% (8)	50% (10)	50% (10)	55% (11)	60% (15)	21% (14)