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Choose collection locationImmunology / Serology · Individual laboratory test
Dengue IgM can support an assessment of recent infection. The sampling day matters because the antibody response takes time to develop.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Recent Dengue Antibody (IgM)
A clinician may request IgM when the timing of a febrile illness suggests that antibodies may be detectable. The day symptoms began is essential information.
IgM may become detectable after the early days of an illness.
The clinician may choose a molecular or antigen test, or another specimen, according to the day of illness.
Before your sample
No fasting is generally needed. Bring the date fever began and any earlier dengue result; the illness day is central to interpreting an IgM sample.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
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24 hoursLaboratory turnaround
A positive IgM supports a recent infection in the right setting but may cross-react. A negative test early in illness does not close the investigation.
From sample to follow-up

Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationLook for Dengue Antibody, IgM, Rapid Detection Test in your report. Use the sample type and collection time when comparing it with an earlier report.
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Ask which day of illness the sample represents and whether a test for dengue antigen or viral genetic material would add information.
Patient questions
No. In the first seven days of symptoms, a clinician may request a test for dengue RNA or NS1 antigen alongside IgM. After day seven, IgM is usually the main test. Seek medical assessment if dengue is suspected. Care can begin before test results are available.
One positive IgM supports presumptive recent infection. Antibodies may cross-react with related viruses, so the clinician considers travel, exposure and other tests.
No. A single antibody pattern cannot reliably distinguish a first infection from reinfection. Illness timing and, when appropriate, additional or paired samples help clarify the finding.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.