Table 1

 Characteristics of six patients with acute parvovirus B19 infection at study entry (baseline)

PtSexAge (y)Joints involvedRashESR (mm/h)RFANAB19 IgM/IgG-Ab (ELISA)B19 IgM/IgG-Ab (IB)B19 PCR
ANA, antinuclear antibodies; B19 IgM/IgG-Ab, parvovirus B19 IgM and IgG antibodies; ELISA, enzyme linked immunosorbent assay; ESR, erythrocyte sedimentation rate; F, female; IB, immunoblot; nd, not done; PCR, polymerase chain reaction; Pt, patient; RF, rheumatoid factor; y, years; +, positive; –, negative.
1F24610+/+–/+
2F397+29+/++/++
3F364+14++/+–/++
4F281017+/++/+
5F32410+/++/+nd
6F44111+/+–/+nd