H9N7 & Influenza A Viral Load Quantitative Test
Short Name: H9N7 Influenza A Viral Load
Also known as: Influenza A H9N7 PCR, Avian Influenza A Viral Load, H9N7 Quantitative PCR
H9N7 & Influenza A Viral Load Quantitative Test test available at DNA Labs India for ₹11,560. Uses Real Time PCR on Sputum; throat and nasal swabs in viral transport medium, or lung tissues, Cell Cultures etc. samples. Results in Reports are typically available on the 4th working day. For urgent cases, expedited reporting may be available on request.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Kothari Ramesh Shantilal
Consultant Microbiologist · Reg: 27670
Last reviewed: September 7, 2026
Overview
The primary purpose of this test is to confirm the presence of Influenza A virus, specifically the H9N7 subtype, and to quantify the viral load in respiratory secretions. This information helps clinicians in several ways: 1) Confirming the diagnosis of influenza A infection, especially when clinical presentation is atypical or when rapid antigen tests are negative. 2) Assessing the severity of the infection – higher viral loads often correlate with more severe disease and increased risk of complications. 3) Monitoring the response to antiviral therapy – a decrease in viral load over time indicates effective treatment. 4) Guiding infection control measures in healthcare settings to prevent outbreaks. 5) Supporting epidemiological surveillance for emerging influenza strains with pandemic potential. The quantitative nature of the test provides valuable data that can influence clinical decisions, such as the need for hospitalization, intensive care, or prolonged antiviral treatment.
- Test Code
- 6149
- CPT Code
- 87502
- ICD Code
- J10.1
- Price
- ₹11,560
- Sample Type
- Sputum; throat and nasal swabs in viral transport medium, or lung tissues, Cell Cultures etc.
- Result Time
- Reports are typically available on the 4th working day. For urgent cases, expedited reporting may be available on request.
- Fasting Required
- No
- Method
- Real Time PCR
Sample Collection
No special preparation is required. However, it is important to inform the healthcare provider about any recent antiviral medication use and clinical history. A signed consent document is required.
Method: Nasopharyngeal or throat swab
Laboratory Analysis
A healthcare professional will collect a respiratory sample using a swab (nasopharyngeal or throat) or sputum. The procedure is quick and may cause minor discomfort.
Report Delivery
The sample is placed in a viral transport medium and sent to the laboratory immediately. No specific post-collection precautions are needed for the patient.
Timeline: Reports are typically available on the 4th working day. For urgent cases, expedited reporting may be available on request.
Patient Instructions
About This Test
Who Should Get This Test
The primary purpose of this test is to confirm the presence of Influenza A virus, specifically the H9N7 subtype, and to quantify the viral load in respiratory secretions. This information helps clinicians in several ways: 1) Confirming the diagnosis of influenza A infection, especially when clinical presentation is atypical or when rapid antigen tests are negative. 2) Assessing the severity of the infection – higher viral loads often correlate with more severe disease and increased risk of complications. 3) Monitoring the response to antiviral therapy – a decrease in viral load over time indicates effective treatment. 4) Guiding infection control measures in healthcare settings to prevent outbreaks. 5) Supporting epidemiological surveillance for emerging influenza strains with pandemic potential. The quantitative nature of the test provides valuable data that can influence clinical decisions, such as the need for hospitalization, intensive care, or prolonged antiviral treatment.
How to Prepare
- Sample must be collected in a sterile container with viral transport medium
- Swabs should be inserted into the nostril or throat as per standard protocol
- Label the sample with patient identification and collection time
- Transport the sample to the laboratory at 2-8°C if processing within 48 hours; otherwise, freeze at -70°C
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"Quantitative viral load testing is essential for monitoring disease severity and guiding antiviral therapy in influenza A infections, including rare subtypes like H9N7."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Sample not in viral transport medium
- Insufficient quantity
- Sample leaking or contaminated
- Improper labeling
- Sample received after prolonged delay without proper storage
Understanding Your Results
Positive for H9N7 subtype
Confirms H9N7 infection. Clinical correlation and management as per influenza guidelines.
Positive for Influenza A (non-H9N7)
Indicates infection with another Influenza A subtype. Further subtyping may be needed.
Negative
No evidence of Influenza A infection. Consider other respiratory pathogens.
Consult a healthcare provider immediately if you experience severe symptoms such as difficulty breathing, chest pain, confusion, or persistent high fever, especially if you have been exposed to poultry or have underlying health conditions. Early diagnosis and treatment can prevent complications.
Limitations
- ⚠A negative result does not completely rule out influenza A infection; false negatives can occur if the sample is collected too early or too late in the course of illness
- ⚠Viral load may not directly correlate with disease severity in all patients
- ⚠The test detects RNA, not viable virus, so it cannot distinguish between infectious and non-infectious virus
- ⚠H9N7 subtype detection is based on specific primers; rare mutations may affect detection
- ⚠Quantitative results are for research and clinical monitoring; clinical correlation is essential
Risks & Considerations
- ●Minor discomfort during sample collection
- ●Slight risk of bleeding if nasal swab is traumatic (rare)
- ●No significant systemic risks
Interfering Factors
- ●Improper sample collection or storage leading to RNA degradation
- ●Presence of PCR inhibitors in the sample (e.g., blood, mucus)
- ●Cross-contamination during sample processing
- ●Recent antiviral therapy may reduce viral load and affect detection
- ●Co-infection with other respiratory pathogens
Compare With Similar Tests
| Test | H9N7 & Influenza A Viral Load Quantitative Test | Rapid Antigen Test | Influenza A/B PCR (Qualitative) | Viral Culture |
|---|---|---|---|---|
| Comparison | H9N7 & Influenza A Viral Load Quantitative Test |
Frequently Asked Questions
What is the cost of the H9N7 & Influenza A Viral Load Quantitative Test?
How is the sample collected for this test?
Do I need to fast before the test?
How long does it take to get the results?
Is home sample collection available?
What does a positive result mean?
Can this test differentiate between H9N7 and other Influenza A subtypes?
What is the sample type required?
Is this test covered by insurance?
Are there any risks associated with the test?
Who should get this test?
How should I prepare for the test?
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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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