TABLE 1.

IFN-γ secretion by PBMC from recently infected children or adults in response to B19V capsid proteins

Source of samples	B19V-specific IFN-γ productiona (pg/ml [mean ± SE]) in response to:		No. of samples
	VP1	VP2
Children	<80	<80	16
Adults	610 ± 348	1,765 ± 825	7

^aIFN-γ responses by PBMC isolated from recently infected children or B19V-seropositive convalescent adults following in vitro stimulation with either purified VP1 or VP2 (10 μg/ml).