Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles
Immune antibody test for families checking Hib bacteria immunity and infection risk

Haemophilus Influenzae Type B Immunity Blood Test

Haemophilus influenzae Type B Antibody (IgG)

  • Check your immunity protection level
  • Screen for vaccine booster needs
  • Assess infection risk for family
$328
First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay
  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

What's this test for?

This test is ideal if you're concerned about your immunity to Haemophilus influenzae type B, a bacteria that can cause serious infections like meningitis and respiratory illness. It's often used to check whether past vaccination or infection has given you lasting protection. It can also help if you or a family member has had repeated infections and you want to understand your immune response.

What's included in this test?

This test measures your Haemophilus influenzae type B IgG antibody level, which acts as a marker of your immune system's memory against this bacteria. Checking this single antibody matters because it tells you whether your body has built up enough protection to fight off an infection if exposed, which is especially important for young children, older adults, and anyone with a weaker immune system.

What happens after I get my results?

Your results will show up in your account with a clear explanation of what the normal antibody range looks like and where your value falls. If your antibody level is low, simple next steps might include discussing a booster vaccination or retesting after some time to see if your immunity has changed. You can download a standard lab report straight from your account, and if you test again down the road, the trends feature lets you see how your antibody levels change over time.

How can I naturally support my immune system?
Getting enough sleep, eating a balanced diet with plenty of fruits and vegetables, and managing stress all help your immune system work at its best. Regular exercise and staying hydrated also support your body's ability to produce and maintain antibodies. If you smoke, cutting back or quitting can improve your overall immune response as well.
When will I get my results?
Lab results for this test are typically ready within about 7 days after your sample is collected. Once processed, your results are uploaded directly to your secure online account so you can view them as soon as they're available. You'll be able to see your antibody value along with an explanation of what it means.
Who should consider this test?
This test is a good fit for parents wanting to confirm their child's immunity after Hib vaccination, adults with frequent respiratory infections, or anyone who wants to verify their protection status before starting a new job or activity that involves close contact with young children or immunocompromised individuals. It's also useful for people who are unsure of their vaccination history.
What symptoms indicate I may need this test?
Frequent ear infections, sinus infections, bronchitis, or pneumonia can sometimes point to gaps in immunity against bacteria like Haemophilus influenzae. In infants and young children, signs like high fever, stiff neck, or extreme sleepiness could suggest a more serious infection and warrant immediate medical attention. If you've had unexplained recurring respiratory illnesses, this test can help clarify whether low immunity is a factor.
What does a low antibody result mean?
A low IgG antibody level for Haemophilus influenzae type B means your immune system may not have strong, lasting protection against this bacteria. This could happen if you were never vaccinated, if your vaccine-induced immunity has faded over time, or if your immune system doesn't respond as strongly to certain bacteria. Consider a booster vaccination and retesting a few months later to check if your levels have improved.
What does a high antibody result mean?
A high IgG antibody level generally means your immune system has built up a strong, active memory response to Haemophilus influenzae type B, often from past vaccination or exposure. This is usually a good sign and suggests solid protection against this bacteria. No action is typically needed if your level falls in the higher, protective range.
How often should I retest?
If your antibody levels come back low, retesting three to six months after a booster vaccination can help confirm your immunity has improved. For most people with normal results, retesting isn't necessary unless you have ongoing infections or a specific health concern. Tracking your results over time in your account can help you spot any downward trends early.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Haemophilus influenzae Type B IgG Antibody 0.8 mcg/mL
Demo results
Low Immunity (<1.0 mcg/mL) Protective (≥1.0 mcg/mL)
0.8 mcg/mL

What this means

Your antibody level of 0.8 mcg/mL falls below the protective threshold, suggesting limited immunity to Haemophilus influenzae type B. This could mean vaccine protection has faded over time or was never fully established.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Find a lab near you

Search Quest Diagnostics and LabCorp locations available through Private MD Labs.

Find a lab

Haemophilus Influenzae Type B Immunity Blood Test

  • Check your immunity protection level
  • Screen for vaccine booster needs
  • Assess infection risk for family
$328
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
Ask Me Anything

Your 24/7 Personal Lab Guide

Hi. Tell me what you want to check. I'll find the right blood test for you.

Just now
For informational purposes only. Not medical advice.