Immunity Titer Blood Tests
A titer test is a simple blood draw that measures antibody levels to confirm you are immune to a specific disease — either from a prior vaccination or natural infection.
MMR Titer
Confirms protective antibody levels for all three components of the MMR vaccine. A single blood draw tests all three simultaneously.
- Required for most healthcare employment
- School and university compliance
- Travel medicine documentation
- Results in 3–5 business days
Varicella Titer
Measures varicella-zoster virus (VZV) IgG antibodies to confirm immunity from prior infection or the varicella vaccine series.
- Healthcare worker onboarding requirement
- Childcare and school staff compliance
- Pre-employment occupational health
- Results in 3–5 business days
Hepatitis B Titer
Quantitative hepatitis B surface antibody test confirming immune response following the Hep B vaccine series. A level ≥10 mIU/mL indicates adequate protection.
- OSHA-required for bloodborne pathogen exposure
- Healthcare, dental, and lab workers
- First responders and law enforcement
- Results in 3–5 business days
Common Requirements by Industry
Titer testing is required or strongly recommended in a growing number of industries. If your employer or licensing board requires proof of immunity, a titer is the accepted standard.
- Hospitals & Health Systems — MMR, varicella, and Hep B titers are standard pre-employment requirements for nurses, physicians, techs, and administrative staff with patient contact
- Dental Offices — Hep B titer required under OSHA's Bloodborne Pathogen Standard (29 CFR 1910.1030)
- Childcare & Schools — MMR and varicella titers often required for staff and volunteers
- First Responders — EMS, fire, and law enforcement commonly require Hep B titer documentation
- Laboratory Workers — Hep B and MMR titers standard for BSL-2 and clinical lab environments
- Home Health Aides — Full titer panel increasingly required by agencies and state licensure
- Military & Government — Pre-deployment and clearance processes may require titer documentation
What If My Titer Is Non-Immune?
A non-immune result means your antibody level is below the protective threshold. In most cases you will need a booster vaccine dose, followed by a repeat titer 4–8 weeks later to confirm the immune response. We can coordinate both the titer and the follow-up documentation.
Titer vs. Vaccine Records
Many employers and licensing boards accept either documented vaccination records or a positive titer result as proof of immunity. If you cannot locate your original vaccination records — or if they are from another country — a titer test is the fastest way to demonstrate compliance.
Employer & Fleet Accounts
Need titers for multiple employees? We offer employer accounts with centralized result tracking through our portal. Bulk orders available.
Set up an employer account →Titer Test Questions
How is a titer test performed?
A titer test is a standard blood draw — typically from a vein in the arm. The sample is sent to a certified laboratory where antibody levels are measured. No special preparation is required; you do not need to fast beforehand.
How long does it take to get results?
Most titer results are available within 3–5 business days from the date of the blood draw. Rush processing may be available for an additional fee — contact us if you need results sooner.
Can I get all three titers in one visit?
Yes. MMR, varicella, and Hep B titers can all be drawn in a single blood collection visit. We will provide separate result documents for each antigen tested.
Will my insurance cover a titer test?
Insurance coverage for titer testing varies by plan. Many occupational health titer tests ordered by employers are not covered by personal health insurance. We recommend paying out-of-pocket for speed and simplicity at our flat rates.
Do you provide documentation my employer will accept?
Yes. We provide a signed lab result report on letterhead that is accepted by hospitals, health systems, licensing boards, and employers across the country. Contact us if you need a specific form completed.