Quick Facts
- Sample: Blood draw (serum)
- Fasting: No fasting required
- Turn-around: 1-3 business days. May take longer based on weather, holiday, or lab delays.
Benefits
- Verify immunity to three critical viral infections without a doctor's visit
- Get results fast with 1-3 day turnaround for urgent travel or work requirements
- Convenient testing with simple blood draw and secure online results
- Avoid unnecessary vaccinations by confirming existing immunity status
- Meet requirements for school, work, travel, and pregnancy planning
- Cost-effective screening to prevent expensive outbreak-related complications
Who Is This Test For?
- Students needing proof of immunity for school enrollment
- Healthcare workers requiring occupational health screenings
- Travelers preparing for international trips to high-risk areas
- Pregnant women or those planning pregnancy (especially rubella immunity) • Adults with unknown or incomplete vaccination records
- Individuals exposed to measles, mumps, or rubella outbreaks
How It Works – Just 3 Steps
- Order online and visit a nearby lab for a quick blood draw
- Lab analyzes your blood sample for IgG antibodies against all three viruses
- Receive results securely online within 1-3 days
FAQ
What does this test measure? IgG antibodies against measles, mumps, and rubella viruses to determine immunity status.
Do I need to fast before the test? No fasting or special preparation is required for this blood test.
How accurate are the results? The test demonstrates high sensitivity and specificity with positive predictive values exceeding 95% in vaccinated populations (Mayo Clinic Labs 2024).
Can this test tell if I'm currently infected? No, this test only detects past immunity from vaccination or previous infection, not active infection.
What if my results show I'm not immune? Consult your healthcare provider about vaccination options to establish immunity.
How long does immunity last? MMR immunity from vaccination typically lasts a lifetime, though some individuals may need boosters.
More Details
What is the purpose of this test?
The MMR Immunity Profile measures immunoglobulin G (IgG) antibodies specific to measles, mumps, and rubella viruses in your blood. This serological assay determines whether you have immunity due to prior vaccination or past infection. A positive IgG result generally indicates adequate immunity, while negative or equivocal results may suggest susceptibility to these infections (LabCorp 2025).
Who would benefit from this test?
This test is especially valuable for individuals with uncertain vaccination history, those planning pregnancy, healthcare workers, travelers, students, or anyone needing proof of immunity. It's crucial for health-conscious individuals seeking direct-to-consumer lab services who want to confirm their immune status without needing a doctor's visit (CDC 2023).
When should I order an MMR Immunity Profile Blood Test?
Order this test before school enrollment, employment in healthcare, international travel, or pregnancy planning, especially if vaccination records are incomplete or unavailable. It's also recommended during measles outbreaks or if you've been exposed to any of these diseases and need to verify your immunity status.
How do I interpret the results?
Positive IgG
- What it means: Adequate immunity present
- Typical action: No vaccination needed
Negative IgG
- What it means: No immunity detected
- Typical action: Consult provider for vaccination
Equivocal IgG
- What it means: Uncertain immunity status
- Typical action: Retest or vaccinate per provider guidance
Measles remains highly contagious with outbreaks reported in the U.S., underscoring the importance of immunity verification for public health protection.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
Pre-test preparation
No fasting or medication adjustments are required. Simply follow any specific instructions from your testing provider. The blood draw is performed via standard venipuncture into a serum gel tube for laboratory analysis.
How often should I get tested?
- Initial immunity verification: Once, unless results are equivocal
- Healthcare worker screening: Per employer requirements
- Pre-pregnancy planning: Once before conception
- Post-exposure assessment: As recommended by provider
Why early detection matters
Early detection of non-immunity can prevent costly outbreaks and severe complications. The economic burden of measles outbreaks in the U.S. can exceed millions of dollars per event, highlighting the cost-effectiveness of immunity screening (CDC 2023). Rubella infection during pregnancy can cause congenital rubella syndrome, affecting approximately 20,000 infants worldwide annually (WHO 2023).
Related tests you may consider
Varicella-Zoster Virus (VZV) IgG Antibody Test complements MMR immunity testing by assessing immunity to chickenpox, another common vaccine-preventable virus.
Hepatitis B Surface Antibody Test is useful for broader infectious disease immunity screening, especially in healthcare workers.
Complete Blood Count (CBC) can evaluate overall immune status and rule out active infections if symptoms are present.
