Cytomegalovirus (CMV) Antibody, IgM
The early antibody that points to a current or recent CMV infection.
Consider this test if:
- A mononucleosis-like illness with fever, fatigue, sore throat, or swollen glands
- Pregnancy or planning pregnancy, where a recent CMV infection carries specific risk
- Investigating a possible recent or active CMV infection alongside IgG
- Following up an acute illness with paired IgG and IgM samples to confirm seroconversion
- HSA/FSA eligible
- Typical results in 1-2 days · Reviewed by a real clinician
- Drawn at a CLIA/CAP-accredited lab near you ·
Pre-test considerations
No fasting required and timing within the day does not matter. Because IgM alone cannot confirm a new infection, results are most useful when paired with IgG and, when acute infection is suspected, repeated in two or more weeks to look for IgG seroconversion.
Video consult with your Care Team
A 1:1 call to discuss your health.
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What this test is for
Cytomegalovirus is a common herpes-family virus that often causes no symptoms but can produce a mononucleosis-like illness with fatigue, fever, sore throat, and swollen glands, and it matters most in pregnancy and in people with weakened immune systems. IgM is the first antibody class the immune system makes, so it points toward a current or recent infection rather than long-past exposure. A positive IgM is not proof of new primary infection on its own: IgM can persist for over a year, reappear during reactivation, and produce false positives. Primary infection is confirmed by watching IgG convert from negative to positive across paired samples, so if acute infection is suspected, the usual step is to retest both IgG and IgM in two or more weeks. When active infection needs to be confirmed, nucleic acid amplification (PCR) is the definitive test.
- Specimen
- Serum or plasma
- Method
- Immunoassay
- Measures
- Presence / threshold
What you'll learn
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Insights that connect the dots. A clinician reads your whole picture, not one result in isolation, connecting family history, past results, and lifestyle into clear next steps.
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Your personalized action plan. Nutrition, supplements, and training in one clinician-reviewed protocol, updated as your results change.
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Track your trends. Upload results from any lab and see each biomarker trend over time, so you know what is working.
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Never miss a recheck. Mito tells you what is worth retesting and when, then reminds you so nothing slips.
What to expect
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Typical results in 1-2 days
Your results post straight to your dashboard as soon as the lab completes them.
- 4 Expert guidance
Included with Mito membership. A clinician reviews your results and your personalized action plan follows, with clear next steps.
Everything your health needs,
in one membership
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Every test at our cost
Members pay our cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Continuous tracking, all in one place
Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
Mito Membership
$9 /mo
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Without membership
$0
pay as you go
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. The member price is our cost, covering the lab and what it takes to run the service. It is never a profit on the test itself. Mito makes its money on the $9 membership, not on marking up your tests. Membership is $9 per month, and any applicable lab order or draw fee is itemized before you pay.
Where do I get tested?
Choose an available partner lab at checkout. If your cart contains multiple blood tests, Mito helps consolidate the eligible tests at one lab when possible. At-home kits and scans follow the collection or appointment process shown on their product page.
Is this eligible for HSA/FSA?
Yes. Eligible tests can be paid for with an HSA or FSA card at checkout.
When will I get my results?
Your results appear in your Mito dashboard after the laboratory completes processing. A clinician then reviews them before your analysis and personalized action plan are finalized. Timing varies by test, and specialty assays and at-home kits may take longer.
Do I need a physician's order?
No. Mito provides the laboratory order when one is required, so you do not need to arrange a separate physician visit before purchasing.
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