The Rubella IgG test is a blood test that measures the presence of immunoglobulin G (IgG) antibodies to the rubella virus. IgG antibodies are produced by the immune system in response to a past infection or vaccination. This test helps determine whether you are immune to rubella or if you are at risk of contracting the virus.
What is Rubella?
Rubella, also known as German measles, is a contagious viral infection that causes a mild rash and fever.
Why It’s Important:
- Assessing Immunity: A positive Rubella IgG result indicates that you are immune to rubella, either because you have had the infection in the past or due to vaccination. This is important, especially for pregnant women or women planning pregnancy as rubella infection during pregnancy can cause severe complications for the foetus.
- Screening for Pregnancy Planning: If you are planning to become pregnant, it is important to confirm that you are immune to rubella. If you are not immune (i.e., a negative IgG result), you may need to get the rubella vaccination before pregnancy, as rubella infection during pregnancy can cause congenital rubella syndrome in the baby, leading to birth defects like heart problems, deafness and intellectual disabilities.
- Post-Vaccination Check: After receiving the rubella vaccination, an IgG test can verify whether the vaccination was effective in building immunity.
