HSV-2 IgG Antibody Test: Booking, Price, and Results
About HSV-2 IgG Antibody Test
| Field | Value |
|---|---|
| Also Known As | HSV-2 IgG, Herpes Type 2 Antibody Test, Herpes Simplex Virus Type 2 Serology |
| Sample Type | Venous blood (serum) |
| Fasting Required | No |
| Report Time | Within 36 hours (may take longer in some cases) |
| Recommended For | Adults of all genders, sexually active individuals, and pregnant women whose partners have genital herpes |
| Price | Starting at ₹750 |
What is an HSV-2 IgG Antibody Test?
The HSV-2 IgG antibody test is a blood test that detects immunoglobulin G (IgG) antibodies produced by the immune system in response to herpes simplex virus type 2. The test is also known as the Herpes Type 2 antibody test or HSV-2 type-specific antibody test. It is commonly ordered for sexually active individuals who may have been exposed to the virus, as well as for those experiencing symptoms consistent with genital herpes. A small sample of blood is collected from a vein in the arm.
What Does an HSV-2 IgG Antibody Test Measure?
This test looks specifically for IgG antibodies that your immune system produces as part of its long-term memory response against HSV-2. It uses type-specific proteins called glycoproteins (gG-2) to distinguish HSV-2 antibodies from those produced against HSV-1, giving a more accurate picture of which virus type is involved.
| Parameter | What It Represents |
|---|---|
| HSV-2 IgG Index | A numerical value reflecting the level of HSV-2-specific IgG antibodies in the blood. Used to determine negative, equivocal, or positive status. |
Why is an HSV-2 IgG Antibody Test Done?
Doctors order this test to check for past or current exposure to HSV-2. It is useful for individuals with symptoms, recent potential exposure, or those seeking clarity about their infection status.
Common Symptoms That May Require This Test
- Small blisters that break open to form red, painful sores around the genitals, anus, thighs, or buttocks
- Unusual or strong-smelling genital discharge
- A burning or stinging sensation when passing urine
- Flu-like symptoms such as fever, body aches, or swollen glands during a first outbreak
- Tingling or itching in the genital area without visible sores
Conditions This Test Can Help Detect
- Genital herpes caused by HSV-2 (urogenital infection)
- Vesicular skin eruptions (blister-like rashes) in the genital region
- Aseptic meningitis (inflammation of the membranes around the brain and spinal cord) linked to HSV-2
- Neonatal herpes risk assessment in pregnant women with exposed partners
- Asymptomatic HSV-2 carrier status, where a person can transmit the virus without visible symptoms
How to Prepare and What to Expect
No special preparation is needed before this test, but there are a few things worth knowing before your appointment.
Do You Need to Fast?
No fasting is required for the HSV-2 IgG antibody test. You can eat and drink normally before the sample is collected. If your doctor has ordered additional tests at the same time, check whether any of those require fasting.
Practical Tips Before Your Test
- Tell your doctor about any recent symptoms, potential exposure, or past diagnosis of herpes.
- If you have been exposed recently, be aware that antibodies may not yet be detectable; the CDC advises retesting at 12 weeks after suspected exposure if the initial result is negative.
- Note that some people take up to 6 months to develop detectable antibodies after infection.
- Do not start or stop any antiviral medicines before testing without consulting your doctor.
- Wear clothing with a sleeve that can be easily rolled up for a comfortable blood draw.
Step-by-Step Procedure
- A trained phlebotomist (blood collection specialist) cleans the skin on your inner arm with an antiseptic wipe.
- A fine needle is used to draw a small amount of blood from a vein in your arm. The process usually takes no more than five minutes.
- The blood is collected into a sterile, sealed tube and labelled with your details.
- The needle is removed, and a small cotton swab or bandage is placed on the puncture site.
- The sealed sample is dispatched to the laboratory for enzyme immunoassay (EIA) testing.
- Your results are typically ready within 36 hours of sample collection.
Factors That Can Affect Accuracy
- Testing too soon after exposure (within the first 6 weeks) can yield a false negative.
- A weakened immune system, such as in HIV infection or during immunosuppressive therapy, can affect antibody levels and result in interpretation.
- Low-positive index values (between 1.10 and 3.50) carry a higher risk of being false positives, especially in lower-risk populations.
- A rare strain of HSV-2 that lacks the gG protein (found in approximately 0.2% of cases) may cause a false negative.
- Cross-reactivity with HSV-1 antibodies can occasionally affect the result.
Understanding Your HSV-2 IgG Antibody Test Results
Results from an HSV-2 IgG antibody test are expressed as an index value. Always review your results with a doctor who can consider your symptoms, health history, and exposure details alongside the numbers.
| HSV-2 IgG Index | Result | Interpretation |
|---|---|---|
| 0.90 or below | Negative | No HSV-2 antibodies detected. |
| 0.91 to 1.10 | Equivocal | Inconclusive result. Retesting in 4 to 6 weeks is usually recommended. |
| 1.10 or above | Positive | HSV-2 IgG antibodies are present, suggesting past or current exposure to the virus. |
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 living with HIV or those on immunosuppressive therapy may have altered antibody responses. Results in these individuals should be read with extra care.
- Testing during the early window period after a new infection may produce a false negative. Antibody development timelines vary between individuals and between different laboratory tests.
- Cross-reactivity from other members of the herpesvirus family (such as cytomegalovirus or Epstein-Barr virus) may occasionally contribute to an unclear result.
How to Maintain Healthy Levels
While there is no "normal" level to maintain for an antibody test, here are some general practices that support sexual health and reduce transmission risk:
- Use condoms consistently during sexual activity to lower the risk of HSV-2 transmission
- Avoid sexual contact during active outbreaks or when you notice early warning signs such as tingling or itching
- Speak openly with sexual partners about HSV status so that informed decisions can be made together
Lupin Diagnostics HSV-2 IgG Antibody Test Price and Home Collection
The HSV-2 IgG antibody test is available at Lupin Diagnostics with home collection across major Indian cities. Prices vary by location, as shown below.
| City | Approximate Price (₹) |
|---|---|
| Mumbai | ₹750 |
| Hyderabad | ₹750 |
| Chennai | ₹750 |
| Bangalore | ₹750 |
| Kolkata | ₹750 |
| Pune | ₹750 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
Home Collection
Lupin Diagnostics offers home sample collection for the HSV-2 IgG antibody test across cities in India. All samples are processed in NABL-accredited laboratories by trained professionals. Once ready, your digital report is delivered directly to you via email or WhatsApp.
How to Book
- 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 the stipulated turnaround time.
Frequently Asked Questions
HSV-1 typically spreads through oral contact, such as kissing, and commonly causes cold sores around the mouth. HSV-2 spreads through vaginal, anal, or oral sex and primarily causes blisters or sores in the genital area. The HSV-2 IgG antibody test is designed specifically to detect exposure to the Type 2 strain.
Most people develop detectable IgG antibodies between 6 and 12 weeks after infection. If your initial HSV-2 IgG antibody test result is negative but you suspect recent exposure, the CDC recommends retesting at 12 weeks after the potential exposure date for a more reliable result.
Yes. Most people with HSV-2 are unaware they have it because the virus does not always cause noticeable symptoms. Studies suggest that approximately 75–90% of those with HSV-2 antibodies do not know they are infected. This is one reason testing is useful even without obvious symptoms.
Not necessarily. The HSV-2 IgG antibody test detects past exposure to the virus, not whether the infection is currently active. A positive result means your immune system has previously encountered HSV-2. For identifying an active outbreak, a PCR swab test from a lesion is more appropriate.
Low-positive index values carry a higher risk of false-positive results, particularly in populations where HSV-2 is less common. In such cases, confirmatory testing using methods such as a Western blot or inhibition assay may be recommended. Speak to your doctor before drawing conclusions from a low-positive result.
Routine HSV-2 IgG antibody screening is not recommended for all pregnant women. However, testing may be advised if your partner has a known genital herpes diagnosis so your doctor can assess your risk and provide appropriate guidance.
The risk of passing HSV-2 to a newborn is highest when the mother acquires the infection close to delivery, with transmission rates estimated at 30% to 50% in such cases. The risk is much lower, below 1%, in women with a long history of recurrent herpes. Proper medical supervision during pregnancy and delivery can significantly reduce this risk.
HSV-2 IgG Antibody Test: Booking, Price, and Results
