Parvovirus B19 IgG, Parvovirus B19 IgM
Parvovirus B19 IgM Antibody Parvovirus B19 IgG Antibody
3 – 5 mL plain blood. (a) To diagnose acute parvovirus infection, send acute sample for IgM and IgG antibody, and a second sample two weeks later for IgM and IgG. (b) To diagnose past infection, send one sample for IgG antibody.
Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.
Acute infection: Presence of specific IgM in acute serum and/or convalescent serum and/or seroconversion to IgG Past infection/Immunity: Presence of IgG antibody in the absence of specific IgM
Negative report : <1 – 7 days Positive / Equivocal report : <1 – 14 days
IgM or IgG: Thursday
To diagnose acute Parvovirus B19 infection, both IgM and IgG tests are recommended