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RUBELLA ANTIBODY

Synonym(s):
Lab Section Category
Test Description

​Rubella IgM Antibody (anti-Rubella IgM)

Rubella IgG Antibody (anti-Rubella IgG)

Specimen Required

​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.

Storage/Transport

​Refrigerate samples if delay in transporting to laboratory is anticipated. Do not freeze.

Method

​Anti-Rubella IgM : Enzyme Immunoassay

Anti-Rubella IgG : Chemiluminescent Microparticle Immunoassay

Test Results

Acute infection: Rubella IgM antibody present or seroconversion of Rubella IgM or IgG.

Immunity status: Serum having Rubella IgG antibody ≥ 10 IU/mL.

Anti-Rubella IgM: The test(s) carries an international registration mark (non-HSA) and is used in accordance to laboratory accreditation guidelines.

Turnaround Time

​Anti-Rubella IgM : <1 - 4 days

Anti-Rubella IgG : <1 - 7 days

Day(s) Test Set up

​Anti-Rubella IgM : Tuesday and Friday

Anti-Rubella IgG : Thursday

Change History Notes

  • 13 Aug 2024 12:00 AM

    ​Added result comment to Anti-Rubella IgM test.

  • 16 May 2018 11:20 AM

    Removed Rubella Total HI Antibody (anti-Rubella total) test.

  • 26 Mar 2013 12:55 PM

    Day(s) Test Set-Up: Day(s) Test Set-Up for anti-Rubella IgM has been last updated on 01/04/13.

    Turnaround Time: Turnaround Time for anti-Rubella IgM has been last updated on 01/04/13.

Back: Pathology Laboratory Services

Last Updated - 13 Jun 2025