Table 2. Co-occurrence of IgM or viremia with human bocavirus 1, 2 or 3 primary IgG seroconversions among 109 constitutionally healthy children.

	IgG seroconversion	Viremia	IgM	IgG seroconversion with viremia	IgG seroconversion with IgM	IgG seroconversion with viremia and IgM
HBoV1	94	24	35	22	32	10
HBoV2	58	8	11	4	10	2
HBoV3	11	1	0	1	0	0

Note: data are no. of patients. Viremia or IgM was regarded to coincide with IgG seroconversion if they were present in the first IgG positive sample or the sample preceding this sample. HBoV4 is excluded from the table due to absence of detectable infections. Abbreviations: HBoV, human bocavirus; IgG, immunoglobulin G; IgM, immunoglobulin M.