What is the role of lab tests in the workup of rubella-caused viral arthritis?

Updated: Nov 12, 2019
  • Author: Rabea Ahmed Khouqeer, MD, FRCPC, FAAAAI; Chief Editor: Herbert S Diamond, MD  more...
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The following tests may be ordered for rubella virus:

  • Anti–rubella virus IgM – This value peaks 8-21 days after symptoms, then wanes by 5 weeks
  • Anti–rubella virus IgG – This value rises rapidly over a period of 1-3 weeks, and the rise is of long duration

Rubella virus has been isolated from lymphocytes and synovial fluid of patients who had vaccine-induced disease or who experienced rubella virus–associated arthritis years earlier.

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