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Legionella Pneumophila IgG Antibody Serum Test

DNA Labs India | ISO 9001:2015 Certified

Legionella Pneumophila IgG Antibody Serum Test

Short Name: Legionella IgG Test

Also known as: Legionella IgG Antibody Test, Legionella Serology Test

Legionella Pneumophila IgG Antibody Serum Test test available at DNA Labs India for ₹30,000. Uses Immunofluorescence Assay on Serum samples. Results in 2-3 weeks. Free home collection in 300+ cities across India.

Antibody TestAdults🏠 Home Collection

✍️ Written By

🩺 Medically Reviewed By

Dr Kothari Ramesh Shantilal

Dr Kothari Ramesh Shantilal

Consultant Microbiologist · Reg: 27670

Last reviewed: September 7, 2026

Overview

To diagnose Legionnaires' disease by detecting IgG antibodies to Legionella pneumophila, aiding in differentiation from other respiratory infections.

Test Code
1157
Price
₹30,000
Sample Type
Serum
Result Time
2-3 weeks
Fasting Required
No
Method
Immunofluorescence Assay
Step 1

Sample Collection

Ensure a duly filled Test Send Out Consent Form (Form 35) is provided. No fasting required.

Method: Venipuncture

Step 2

Laboratory Analysis

A healthcare professional will collect a blood sample via venipuncture from a vein in the arm.

Step 3

Report Delivery

Apply pressure to the puncture site to prevent bleeding. Sample is refrigerated or frozen for stability.

Timeline: 2-3 weeks

Patient Instructions

1
Before the Test:Complete the mandatory consent form. No special preparation needed.
2
During the Test:Blood draw procedure similar to any standard blood test.
3
After the Test:Resume normal activities. Monitor puncture site for any issues.

About This Test

Who Should Get This Test

To diagnose Legionnaires' disease by detecting IgG antibodies to Legionella pneumophila, aiding in differentiation from other respiratory infections.

How to Prepare

  • Fill consent form mandatory
  • Sample stability: Room temperature 8 hrs, Refrigerator 14 days, Frozen 30 days
  • Ship refrigerated or frozen

Doctor's Notes

Reviewed by — MBBS, MD (Microbiology) · Reg. No. 27670

"This test is crucial for diagnosing Legionnaires' disease, which can mimic other respiratory illnesses. Early detection aids in targeted treatment and prevents complications."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeSerum
Sample Volume2 mL (1 mL min.)
ContainerSST (Serum Separator Tube)
Collection MethodVenipuncture

Sample Stability

Room Temperature: 8 hours
Refrigerator: 14 days
Frozen: 30 days
Sample Rejection Criteria:
  • Hemolyzed sample
  • Insufficient volume
  • Improperly labeled specimen

Understanding Your Results

Results indicate the presence of IgG antibodies to Legionella pneumophila. Interpretation should consider clinical symptoms and other tests.
📊

Negative

No detectable IgG antibodies; infection unlikely or early stage

📊

Positive

Detectable IgG antibodies; suggests past or current infection with Legionella pneumophila

📊

Borderline

Equivocal; may require repeat testing or additional diagnostics

⚠️ When to Consult a Doctor:

If symptoms persist or worsen after testing, or if results are positive or equivocal, consult a healthcare provider for further evaluation and treatment.

Limitations

  • ⚠Cannot distinguish between active and past infections
  • ⚠False positives may occur
  • ⚠Sensitivity varies by infection stage

Risks & Considerations

  • ●Minor bruising or pain at puncture site
  • ●Rare infection at collection site
  • ●Dizziness or fainting

Interfering Factors

  • ●Cross-reactivity with other bacterial infections
  • ●Immunosuppressive conditions
  • ●Recent vaccination

Compare With Similar Tests

TestLegionella Pneumophila IgG Antibody Serum TestLegionella Urine Antigen TestSputum Culture for Legionella
ComparisonLegionella Pneumophila IgG Antibody Serum Test

Frequently Asked Questions

What is the Legionella Pneumophila IgG Antibody Serum Test?
It is a blood test that detects IgG antibodies to Legionella pneumophila, helping diagnose Legionnaires' disease.
What symptoms indicate the need for this test?
Symptoms include fever, cough, shortness of breath, muscle aches, headache, fatigue, and confusion.
How much does the test cost in India?
The cost is INR 30000, with free home sample collection available in major cities.
Is fasting required for the test?
No, fasting is not required, but a consent form (Form 35) is mandatory.
What sample is needed for the test?
A serum sample of 2 mL (minimum 1 mL) collected in an SST tube.
How is the test performed?
It uses immunofluorescence assay on the serum sample to measure antibody levels.
What do positive results mean?
Positive results indicate the presence of IgG antibodies, suggesting a past or current infection with Legionella pneumophila.
How long does it take to get results?
Results are typically available within 2-3 weeks after sample collection.
Is the test covered by insurance?
It may not be covered by insurance; check with your provider for details.
Can the test be done at home?
Yes, free home sample collection is available for online bookings in India.
What are the limitations of this test?
It cannot distinguish between active and past infections, and false positives may occur.
When should I consult a doctor after the test?
Consult a doctor if symptoms persist, results are positive, or for interpretation and treatment.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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For Hospitals & Clinics

Reference Laboratory Services

We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.

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