What is the Dengue IgG test used for?

To detect secondary dengue infection To get the history of previous dengue infection To analyse the recovery after dengue diagnosis To check on the post-vaccination against Dengue.

Understanding the test results of Dengue IgG Test

IgG Negative - No significant level of detectable dengue fever virus IgG antibody Equivocal - Questionable presence of antibodies. For an accurate diagnosis, you need to repeat the test after 5-10 days IgGPositive - IgG antibodies to dengue fever virus detected, which may indicate a current or past infection. Book an appointment to get a free second opinion at Yashoda Hospitals

What are the tests recommended by a doctor to diagnose dengue?

Your doctor will likely ask about your travel history and will suggest the required blood tests for you. Generally, the tests recommended are: Non-structural protein 1 (NS1) antigen test Complete blood test Immunoglobulin G/ Immunoglobulin M test Real-time polymerase chain reaction (RT-PCR) test. Nucleic acid amplification tests (NAATs).

What are the complications of the dengue IgG test?

It is very rare for this test to result in serious complications. There is a significantly less possibility of side effects while the blood is drawn, like Developing bruises where the needle was inserted Excessive bleeding Haematoma The bruises developed during the test will get gradually reduced.

Yashoda Hospitals > Diagnostics > Dengue IgG Test

What is the Dengue IgG Test?

Dengue IgG Test or Immunoglobulin G test is used for the detection of Dengue virus IgG antibodies. This test is usually used as a screening test and provides a preliminary test result to diagnose any previous or present infection with dengue viruses. Secondary dengue infections are characterised by high counts of IgG dengue virus antibodies. The levels rise around 7 days with a peak during the 2nd week. It remains in the blood for 90 days. But in some people, it may remain for the rest of their life. If IgG is positive and IgM is negative, this means that the person was infected with dengue in the past.

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Frequently Asked Questions

To detect secondary dengue infection
To get the history of previous dengue infection
To analyse the recovery after dengue diagnosis
To check on the post-vaccination against Dengue.

IgG Negative - No significant level of detectable dengue fever virus IgG antibody
Equivocal - Questionable presence of antibodies. For an accurate diagnosis, you need to repeat the test after 5-10 days
IgGPositive - IgG antibodies to dengue fever virus detected, which may indicate a current or past infection.

Book an appointment to get a free second opinion at Yashoda Hospitals

Generally, the Dengue IgG test is recommended to detect any secondary dengue infection and by the count of IgG antibodies. This test is recommended to persons with high fever or who have returned from an area where there is an outbreak of Dengue.

Dengue IgG is a blood test. This test usually involves drawing blood from a vein in your arm. Your pathology lab assistant will insert a needle into the skin to access the vein. This needle is usually connected to a syringe or a tube to collect the blood. This process usually takes 5 – 10 minutes.

You will need to take this test if you leave or recently travelled from a location where dengue is common and you have symptoms of dengue fever. If your doctor suspects a secondary dengue infection, you will be required to take this blood test.

Dengue IgG positive means IgG antibodies to Dengue fever virus are detected in your blood sample. This may indicate a past infection or a current one. You will need to take another test to confirm.

There is no specific medication for Dengue fever. Take enough rest and drink plenty of liquids. If you have a high fever and severe dengue symptoms, you should immediately seek medical advice.

Your doctor will likely ask about your travel history and will suggest the required blood tests for you. Generally, the tests recommended are:

Non-structural protein 1 (NS1) antigen test
Complete blood test
Immunoglobulin G/ Immunoglobulin M test
Real-time polymerase chain reaction (RT-PCR) test.
Nucleic acid amplification tests (NAATs).

No special preparation is required to take the test. The sample can be taken at any time of the day.

It is very rare for this test to result in serious complications. There is a significantly less possibility of side effects while the blood is drawn, like