Rubella IgG Ab, Rubella IgM Ab
Rubella IgM Antibody (anti-Rubella IgM) Rubella IgG Antibody (anti-Rubella IgG)
3 – 5 mL plain blood. (a) To diagnose acute rubella infection, send an acute serum for Rubella IgM antibody, and a convalescent serum taken 10-14 days later for Rubella IgM and IgG antibody. (b) To evaluate a pregnant contact of a case of rubella, send first sample immediately after exposure and second sample four weeks after exposure for Rubella IgM antibody. (c) To determine the immunity status to rubella, send a single sample for Rubella IgG antibody.
Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.
Anti-Rubella IgM : Enzyme Immunoassay
Anti-Rubella IgG : Chemiluminescent Microparticle Immunoassay
Acute infection: Rubella IgM antibody present or seroconversion of Rubella IgM or IgG. Immunity status: Serum having Rubella IgG antibody ≥ 15 IU/mL
Anti-Rubella IgM : <1 - 4 days Anti-Rubella IgG : <1 - 7 days
Anti-Rubella IgM : Tuesday and FridayAnti-Rubella IgG : Thursday
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