Short answer: An MMR titer is a blood test that checks immunity to measles, mumps, and rubella. Schools often require all three components to show immune or positive status.

Quick answer

An MMR titer is a blood test that checks immunity to measles, mumps, and rubella. Schools often require all three components to show immune or positive status.

What MMR means

• Measles, also called rubeola
• Mumps
• Rubella, also called German measles

Recommended SchoolTiters links

• MMR Titer
• School Immunity Panel
• Titers Collection

FAQ

Does MMR titer include varicella?

No. Varicella is a separate chickenpox immunity test unless you order a panel that includes it.

Can I order only MMR?

Yes. Use the MMR Titer product if your form only asks for MMR.

What if one part of MMR is non-immune?

Your school may require vaccination or follow-up documentation for that component.