Table 1. Virologic findings for PARV4 primary infections in 2 patients, Finland*.

Patient	Date of sampling	IgG EIA absorbance	IgM EIA absorbance	PCR	IgG avidity, %
A	2004 Sep 8	0.016	0.051	–	ND
	2006 Mar 14	2.873	0.218	+	17.7
B	2006 Mar 13	0.950	1.461	+	8.9
	2006 Apr 6	1.946	0.661	+	10.1

*PARV4, parvovirus 4; Ig, immunoglobulin; EIA, enzyme inmmunoassay; –, negative; ND, not determined; +, positive.