Dengue IgM Antibody

Dengue is a mosquito-borne viral infection transmitted by Aedes mosquitoes. The IgM antibodies typically appear 4–5 days after the onset of symptoms and remain detectable for a few weeks. This test is useful when the early NS1 antigen test window has passed, helping confirm dengue infection during the later phase.

Uses of the Test

• Diagnose recent or active dengue infection

• Evaluate symptoms like fever, body pain, headache, rash, and weakness

• Support diagnosis when NS1 antigen test is negative

• Monitor progression of dengue infection

• Used as part of fever or dengue panel testing

Frequently Asked Questions (FAQs)

1. What does the Dengue IgM test detect?
It detects IgM antibodies indicating a recent or active dengue infection.

2. When should this test be done?
It is most accurate after 4–5 days of fever, when antibodies develop.

3. Is fasting required for this test?
No, fasting is not required.

4. Can this test replace the NS1 antigen test?
No, both tests are used at different stages—NS1 for early detection and IgM for later stages.

5. How long does it take to get results?
Results are usually available within 24 hours (or faster in rapid formats).