Parvovirus B19 IgG Antibody Test: Booking, Price, and Results
About Parvovirus B19 IgG Antibody Test
| Field | Value |
|---|---|
| Also Known As | Parvovirus B19 IgG, human parvovirus B19 antibody IgG, parvovirus immunity test, anti-parvovirus B19 IgG EIA |
| Sample Type | Serum (venous blood) |
| Fasting Required | No fasting required |
| Report Time | 5 Days |
| Recommended For | All ages and genders, especially pregnant women with exposure, individuals with blood disorders, and immunocompromised patients |
| Price | Starting at ₹3,000 |
What Is a Parvovirus B19 IgG Antibody Test?
The parvovirus B19 IgG antibody test checks your blood for IgG antibodies, which are immune proteins your body produces weeks after an infection to help provide long-term immunity. A positive result indicates that you were exposed to parvovirus B19 at some point in the past and have likely developed immunity. It is also known as the parvovirus B19 immunity test. Doctors may order this test to assess immunity status, investigate unexplained joint pain or anaemia, or evaluate risk in pregnant women exposed to the virus.
What Does a Parvovirus B19 IgG Antibody Test Measure?
This test detects a specific type of immune protein in your blood serum. Here is what that means:
| Parameter | What It Measures |
|---|---|
| Parvovirus B19 IgG Antibodies | Whether you have been previously infected and have developed antibodies against the virus. |
IgG antibodies generally become detectable about 2 to 3 weeks after exposure to parvovirus B19 and may remain in the bloodstream for life. Their presence indicates past infection and likely immunity. Their absence usually suggests that you have not been previously infected and may remain susceptible to parvovirus B19.
Why Is a Parvovirus B19 IgG Antibody Test Done?
Doctors order this test for several reasons, ranging from investigating symptoms of infection to checking immunity before or during pregnancy.
Common Symptoms That May Require This Test
- A bright red rash on the face, often called the "slapped cheek" appearance.
- A lacy or net-like rash spreading to the body.
- Joint pain or swelling, particularly in the hands, wrists, or knees.
- Fever with flu-like symptoms
- Unusual fatigue or tiredness
- Unexplained anaemia (low red blood cell count).
Conditions This Test Can Help Detect
- Fifth disease (also called erythema infectiosum or “slapped cheek syndrome”), a mild viral illness common in children.
- Aplastic crisis, a sudden reduction in red blood cell production, especially in patients with sickle cell disease or other blood disorders.
- Chronic anaemia in individuals with weakened immune systems.
- Hydrops fetalis (abnormal fluid build-up in a foetus) associated with parvovirus B19 infection during pregnancy.
- Joint pain (arthralgia) linked to past parvovirus B19 infection.
Parvovirus B19 IgG Antibody Test During Pregnancy
This test is particularly relevant for pregnant women. Parvovirus B19 can cross the placenta and infect the foetus, potentially leading to severe foetal anaemia, hydrops fetalis, miscarriage, or stillbirth. Approximately one-third of pregnant women have not been previously infected and remain at risk of acquiring a primary infection. Testing helps determine whether a pregnant woman exposed to the virus is immune or susceptible, allowing the doctor to assess any potential risk to the foetus.
How to Prepare and What to Expect
No special preparation is needed for this test. The steps below will help you know what to expect on the day of collection.
Do You Need to Fast?
No, fasting is not required before the parvovirus B19 IgG antibody test. You may eat and drink as usual before your appointment. If your doctor has also requested other blood tests alongside this one, check whether those require fasting.
Practical Tips Before Your Test
- Wear loose, comfortable clothing with sleeves that can be easily rolled up.
- Bring a detailed clinical history including your symptoms, previous test results, and family history, as this helps in interpretation of result.
- Inform the phlebotomist about any medications, supplements, or recent illnesses
- Stay well hydrated, as this can make blood collection easier.
- Note the date of any potential exposure to parvovirus B19, as timing affects result interpretation.
Step-by-Step Procedure
- A trained phlebotomist cleans the inner elbow area with an antiseptic wipe to reduce any risk of infection.
- An elastic band is placed around your upper arm to make the vein visible and easier to access.
- A small needle is gently inserted into a vein to draw a blood sample (this is called venepuncture).
- The blood is collected into a serum separator tube (SST), which helps prepares the sample for analysis.
- The needle is removed, and a small cotton swab or bandage is placed over the area.
- The sample is sent to the laboratory, where IgG antibodies are detected using an enzyme immunoassay (EIA), a method that identifies specific antibodies in the blood serum.
Factors That Can Affect Accuracy
The following factors may influence the quality or reliability of the test result:
- Timing of the test: IgG antibodies generally become detectable about 2 to 3 weeks after exposure, so testing too early may produce a negative result even if infection has occurred.
- A weakened immune system: People with weakened immune systems may not produce enough antibodies for the test to detect, making results more difficult to interpret.
- Sample collection or storage issues: Improper handling before the sample reaches the laboratory may affect the accuracy of the results.
- Other medical conditions or infections: Certain conditions, including the presence of antinuclear antibodies, may occasionally interfere with related assay results.
Understanding Your Parvovirus B19 IgG Antibody Test Results
Your results will typically be reported as positive, negative, or equivocal (borderline). The table below shows the standard reference ranges used in the EIA method.
| Result | Index Value (IV) | Interpretation |
|---|---|---|
| Negative | 0.90 or less | No significant level of detectable antibody; no previous exposure. |
| Equivocal | 0.91 to 1.09 | Borderline result; repeat testing in 7 to 21 days may be recommended. |
| Positive | 1.10 or greater | IgG antibodies detected; indicates past infection and likely immunity. |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
- People with weakened immune systems, such as those receiving chemotherapy or living with HIV, may not produce enough antibodies to register a positive result even if infection has occurred. In these situations, additional testing methods may be needed.
- Very early infection, before the body has produced detectable antibodies (seroconversion), can also produce a negative IgG result. If symptoms are present but IgG is undetectable, the doctor may recommend repeat testing or a parvovirus B19 IgM test.
How to Reduce the Risk of Infection
While there is no vaccine for parvovirus B19, the following general precautions may help reduce the risk of infection:
- Wash your hands frequently with soap and water, especially after contact with children who may have a rash illness.
- Avoid close contact with individuals known to have an active parvovirus B19 infection.
- If you are pregnant and not immune, take extra care around young children during known outbreaks of fifth disease in your area.
Lupin Diagnostics Parvovirus B19 IgG Antibody Test Price and Home Collection
The parvovirus B19 IgG antibody test is available at Lupin Diagnostics starting at ₹3,000, with home collection available across major cities in India.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 3000 |
| CHENNAI | 3000 |
| HYDERABAD | 3000 |
| KOLKATA | 3000 |
| NAVI MUMBAI | 3000 |
| PUNE | 3000 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
You can book your test online in a few simple steps:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within 5 days.
Home Collection
The parvovirus B19 IgG antibody test home collection service is available across cities in India. A certified phlebotomist will visits your home at your chosen time to collect the blood sample. All samples are processed in NABL-accredited laboratories, and your digital report is shared with you once it is ready.
Frequently Asked Questions
Parvovirus B19 is the virus that causes fifth disease, also known as "slapped cheek syndrome," a common childhood illness with a distinctive facial rash. The parvovirus B19 IgG antibody test checks whether you have been previously infected and have developed antibodies against the virus. It is also used to assess risk during pregnancy or in individuals with certain blood disorders.
Testing is recommended for pregnant women who have been exposed to the virus, individuals with unexplained joint pain or anaemia, patients with blood disorders such as sickle cell disease, and those with weakened immune systems. Your doctor will advise whether this test is relevant for your situation.
A positive test result means you were infected with the virus at some point in the past and have likely developed immunity. For pregnant women, a positive IgG result is generally reassuring, as it indicates prior exposure and possible protection. Your doctor will review the result alongside your clinical history and any IgM results if applicable.
IgG antibodies generally become detectable about 2 to 3 weeks after exposure to parvovirus B19. Testing too early after exposure may produce a negative result even if infection has occurred. If your doctor suspects a recent infection, your doctor may recommend repeat testing or a parvovirus B19 IgM test.
No. The strains of parvovirus that infect cats and dogs are different from the human strain. Parvovirus B19 only affects humans, so you cannot contract it from pets.
Yes. The test involves a routine blood draw and is considered safe during pregnancy. It is specifically recommended for pregnant women who have been exposed to Parvovirus B19, as the results help the doctor assess potential risk to the foetus and determine appropriate follow-up care.
Parvovirus B19 IgG Antibody Test: Booking, Price, and Results
