MMR Titer

The MMR titer measures the Measles, Mumps and Rubella IgG blood antibody levels.

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MMR Titer Test FAQ

What is an MMR titer blood test?

An MMR titer is a blood test that checks for immunity (from prior vaccination or infection) to the Measles, Mumps and Rubella infections.

Who gets an MMR test?

An MMR titer test is typically ordered by students and people who work in healthcare environments as part of compliance requirements. Additionally, some people get the MMR test to check immunity for personal reasons.

What type of MMR titer results will I receive?

Our MMR blood test is the gold standard quantitative (i.e. a number) IgG titer test.

What does a positive MMR titer result mean?

A positive MMR titer lab test means that you are considered immune and do not need to be revaccinated.

What type of specimen will I submit?

This MMR Titer is a blood test.

Do I need to fast to take this test?

Fasting is not necessary.

How long does it take to get test results?

It typically takes 4 business days or less.

Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.

Last updated on November 13, 2017

MMR Titer for $99

MMR Blood Test - More Information

The MMR titer, sometimes known as an MMR immunity test or an MMR lab test, measures MMR blood IgG antibody levels to check for MMR immunity.

MMR is an acronym that represents three different types of contagious infections - measles, mumps and rubella. While caused by separate types of infectious agents, these three infectious are typically lumped together because they are preventatively managed with the single MMR vaccine. Because they are commonly encountered in healthcare and school settings, proof of MMR immunity through the MMR blood titer test or documentation of MMR vaccination is frequently required by schools and healthcare organizations.

The MMR titer is used to check for MMR immunity through measuring immunoglobulin G (IgG) blood antibody levels that protect against the three types of infections. The most common reason that someone might already have MMR immunity is because they previously received the MMR vaccine series. The MMR vaccine series is routinely given to children in the United States and in many other places. The MMR vaccine is a weakened live virus vaccine that gives the recipient a very mild case of each infection. In doing so, the immune system "learns" what measles, mumps and rubella infections look like and generates memories of them that usually lead to MMR immunity. If one is exposed to measles, mumps or rubella after a successful MMR immunization series, the body can mount an effective IgG antibody response that immediately clears out the infection. For many people, receiving the MMR vaccine series can confer lifelong immunity which can be measured by performing and MMR titer antibody blood test.

Infrequently, another reason someone might have MMR immunity and a positive MMR test result is because they were actually infected by mumps, measles and rubella in the past. With the widespread adoption of the MMR vaccine, it is unusual to find someone who had all three MMR infections and recovered. Should this be the case, the body's immune system typically develops native immunity which is protective in case one is exposed to one or more of the MMR infections in the future. If one is getting an MMR titer to check for immunity, they have presumably recovered from all three infections and should demonstrate immunity in their blood titer results.

And so, this MMR titer is designed to check for MMR immunity by measuring the IgG antibody blood levels for the three MMR components. Typically, the gold standard MMR titer is a quantitative, or numerical, titer that reports an actual number result as opposed to positive (reactive) or negative (nonreactive). Getting an MMR titer test near you is relatively straightforward as any standard Quest Diagnostics lab location has the necessary equipment to run the MMR test after the blood has been drawn. MMR lab results come back fairly quickly and the results are not difficult to interpret.

In looking at the sample MMR lab test report provided above, the IgG antibody levels for measles, mumps and rubella are reported as numbers in the results column. Under that is a reference range provided by the lab that includes a value and interpretation of the value. If the IgG number reported falls with the positive range, that means one is immune to the MMR component being reviewed. If one is negative that means that one is not immune and, in most cases, will need to get the MMR vaccine series again even if two out of three come back with immunity. An equivocal MMR titer component result generally is interpreted as negative (i.e. requiring the MMR immunization series) although some people might consider repeating the MMR blood test to see a second lab result shows a clear positive or negative MMR titer.

In the absence of MMR vaccination documentation, many people still opt to get an MMR titer test before getting the MMR vaccine series again. The reason for this is that the MMR vaccine, as mentioned, is a weakened live virus vaccine and there is always a risk of getting sick from a live vaccine. Additionally, the MMR vaccine series requires two doses spread out by twenty eight days which adds extra cost and inconvenience to the MMR immunity process.

For additional reading on the MMR titer lab test and vaccine, please click here. If you are looking for other types of titer tests, please see our titer test page.

Helpful Results Overview

Here is how to interpret an MMR immunity test result:

We hope you found this MMR titer test report review helpful.

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