Understanding Lab Tests for Rubella Susceptibility

Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025

Rubella susceptibility refers to a person's vulnerability to rubella infection due to lack of immunity from previous infection or vaccination. Determining immunity status is crucial, especially for women of childbearing age, as rubella infection during pregnancy can cause serious birth defects known as congenital rubella syndrome.

Recommended Test

Rubella Immune Status

This blood test measures rubella antibodies to determine if you have immunity to rubella. If the test shows you are not immune, it indicates susceptibility to rubella infection, which is particularly concerning for pregnant women due to the risk of congenital rubella syndrome in the developing baby.

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Why Test for Rubella Immunity?

A blood test can accurately determine whether you have protective antibodies against rubella. This information is essential for making informed decisions about vaccination and pregnancy planning. Without immunity testing, it's impossible to know if you're protected against this potentially serious infection.

Understanding Your Results

A positive result indicates immunity to rubella from either previous vaccination or natural infection. A negative result means you are susceptible to rubella and should discuss vaccination with your healthcare provider, especially if you are planning pregnancy or are of childbearing age.

Important Considerations

The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment recommendations.

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