Test library
MMR IgG Panel
The MMR Immunity Test measures IgG antibodies to measles, mumps, and rubella in a blood sample. It is used to check evidence of immunity from vaccination or past infection.
Order MMR Titer Test (Measles, Mumps & Rubella) IgG 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 MMR Titer Test (Measles, Mumps & Rubella) IgG Immunity Test- Typical turnaround
- 1-3 business days
- Starting price
- From $159
- Results
- Confidential, online
Quick answer
The MMR Immunity Test, sometimes called an MMR titer, checks a blood sample for IgG antibodies against measles, mumps, and rubella. IgG antibodies generally indicate immunity, whether it came from vaccination or a previous infection. The panel reports a separate result for each of the three viruses. It is often used for school, employment, or travel requirements where proof of immunity is needed.
What this test measures
Measles, mumps, and rubella are viral illnesses that can be prevented by vaccination. Immunity can be confirmed by measuring IgG antibodies in the blood, which the immune system produces after vaccination or natural infection. Each virus is tested separately, so a person may be immune to some and not others.
Results are usually reported as positive, negative, or equivocal for each component. An equivocal result falls in a gray zone and may lead to repeat testing or a discussion about vaccination. In some situations, IgM testing is used instead when a current infection is being evaluated, but the immunity panel itself focuses on IgG.
People may order this panel for school or childcare enrollment, healthcare employment, volunteer programs, or travel planning. A qualified healthcare provider interprets the results with the person's vaccination records and medical history and decides whether any follow-up or vaccination is appropriate.
- Measles (rubeola) IgG antibodies
- Mumps IgG antibodies
- Rubella IgG antibodies
- Individual positive, negative, or equivocal interpretation per virus
- Varicella IgG when an expanded panel is included
- Hepatitis B surface antibody when an expanded panel is included
Why people order this test
- Confirm evidence of immunity to measles, mumps, and rubella
- Support school, childcare, or employment requirements
- Check immunity before travel or volunteer service
- Identify which of the three viruses you are immune to
- Document immunity when vaccination records are unavailable
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 available, since they help with interpretation.
Understanding your results
Results are typically available within one to three business days. Each virus is reported separately as positive, negative, or equivocal. A qualified healthcare provider interprets the panel with your history and advises whether repeat testing or vaccination is appropriate.
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Frequently Asked Questions
What is an MMR titer test?
It is a blood test that measures IgG antibodies to measles, mumps, and rubella to show whether you have evidence of immunity.
Does a positive result mean I am protected?
A positive IgG result generally indicates immunity. A qualified healthcare provider can confirm what it means for your situation.
What if one of the three results is negative?
It means no evidence of immunity was found for that virus. Your provider may discuss repeat testing or vaccination options with you.
Do I need this test if I have vaccination records?
Not always. Some programs accept records alone, while others request a titer. Check the requirements that apply to you.
Can I be immune without ever having the illness?
Yes. Vaccination produces immunity without infection, and the IgG test detects that response.
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.