Test library
Measles Immunity Test
The Measles Antibodies Test measures IgG antibodies to the measles (rubeola) virus in a blood sample. It shows whether a person has evidence of immunity from vaccination or past infection.
Order Measles Immunity Test
Order online and visit a local collection site, or choose an at-home kit where available. No referral and no insurance required.
Order Measles Immunity Test- Typical turnaround
- 1-3 business days
- Starting price
- From $49
- Results
- Confidential, online
Quick answer
The Measles Antibodies Test checks a blood sample for IgG antibodies against the measles virus, also called rubeola. IgG antibodies generally indicate immunity, whether it came from vaccination or a previous infection. The test is often used to confirm protection for school entry, employment in healthcare, travel planning, or outbreak investigations. A different antibody type, IgM, may be measured when a current or recent infection is being evaluated.
What this test measures
Measles is a highly contagious viral illness, and immunity is important for both individual and community protection. Laboratory testing looks for antibodies the immune system produces in response to the virus or to vaccination. IgG antibodies usually appear after exposure or immunization and remain detectable for a long time, which is why they are used as evidence of protection.
IgM antibodies, by contrast, typically appear during or shortly after an acute infection. Some orders report both IgG and IgM, and a provider interprets them together with symptoms and timing. In some situations, an IgG avidity test or a repeat sample may be used to clarify the stage of infection. Results for measles immunity are generally reported as positive, negative, or equivocal.
People may order this test before travel, for school or childcare requirements, for healthcare employment screening, or after vaccination to confirm a response. A qualified healthcare provider interprets the result with the person's vaccination records and medical history and decides whether additional testing or vaccination is appropriate.
- Measles (rubeola) IgG antibodies
- Measles IgM antibodies when included
- Measles IgG avidity when ordered
- Mumps IgG when a panel is included
- Rubella IgG when a panel is included
- Varicella IgG when a panel is included
Why people order this test
- Confirm evidence of immunity to measles
- Support school, childcare, or employment requirements
- Check immunity before international travel
- Help evaluate a suspected current infection with IgM testing
- Document response after vaccination when needed
How to prepare
No fasting is required for this blood test. Follow the collection instructions provided by the laboratory, and bring your vaccination records if your provider has asked you to, since they help with interpretation.
Understanding your results
Results are typically available within one to three business days. A positive IgG result generally indicates immunity, while a negative or equivocal result may prompt a discussion about vaccination or repeat testing. A qualified healthcare provider interprets the result with your history.
Measles Immunity Test by state
Alabama
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California
Measles Immunity Test across California.
Colorado
Measles Immunity Test across Colorado.
Connecticut
Measles Immunity Test across Connecticut.
Delaware
Measles Immunity Test across Delaware.
Florida
Measles Immunity Test across Florida.
Georgia
Measles Immunity Test across Georgia.
Hawaii
Measles Immunity Test across Hawaii.
Idaho
Measles Immunity Test across Idaho.
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Frequently Asked Questions
What does the measles antibodies test measure?
It measures IgG antibodies to the measles virus, which are used as evidence of immunity from vaccination or past infection. IgM may also be measured when acute infection is a concern.
Does a positive IgG result mean I am protected?
A positive IgG result generally indicates immunity. A qualified healthcare provider can confirm what it means for your situation.
Can I be immune without ever having measles?
Yes. Vaccination produces immunity without infection, and the IgG test detects that response.
Why would IgM be tested?
IgM is used when a current or recent infection is being evaluated, often alongside symptoms and timing of exposure.
What if my result is equivocal?
An equivocal result is neither clearly positive nor negative. Your provider may recommend repeat testing or discuss vaccination options with you.
Ready to get tested?
Order online and visit a collection site near you, or choose a mail-in kit. No referral and no insurance required.
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Every page on this site is reviewed for clarity, sourcing, and accuracy. We update our library as testing options, collection networks, and accreditation standards change.