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Intel Lab Diagnostics Dubai
Single Biomarker

Dengue Antibody, IgM, Rapid Detection Test

Recent Dengue Antibody (IgM)

This rapid test detects IgM antibodies to dengue, indicating a current or recent primary dengue infection. Results are available within 24 hours to support early clinical decisions.

BLOOD24 HOURSNO FASTING
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  • Free home collection
  • Physician-reviewed report

24 Hours

Turnaround

Blood

Sample

About This Test

What the Dengue Antibody, IgM, Rapid Detection Test test tells you

Dengue IgM is the first antibody the immune system makes against the dengue virus, and it is the marker of an infection that is happening now or has happened very recently. The distinction from IgG is the key to reading either test: IgM appears early and fades within months, so it suggests current or recent infection, while IgG appears later, persists for years, and usually reflects past exposure or immunity. This rapid test looks for IgM in a small blood sample.

IgM becomes detectable a few days after fever starts: after the virus itself has begun to clear from the blood, which is why it complements rather than duplicates NS1 antigen testing. It then stays positive for weeks to a few months before fading. In a first dengue infection the IgM response is strong and dominant; in a repeat infection with a different serotype it can be weaker and slower, with IgG taking the lead instead.

Because of that timing, a negative IgM early in the illness does not clear you of dengue. If you are tested in the first day or two of fever, the antibody may simply not have appeared yet, and your doctor may repeat the test or add NS1 antigen testing. Read in the right window and against your travel history, a positive IgM is strong support for acute dengue, but it is the clinical picture that guides what happens next.

Dengue can become severe quickly, so testing is not a substitute for being seen. Fever with recent travel to a country where dengue is common needs prompt medical assessment rather than a self-booked test and a wait for the report. Seek emergency care immediately for severe abdominal pain, persistent vomiting, bleeding from the gums or nose, blood in vomit or stool, or extreme lethargy or restlessness. These warning signs usually appear as the fever settles, which is exactly when people assume they are getting better.

Sample type
Blood
Turnaround
24 Hours
Fasting
Not required
Best for
All ages
Why Get Tested?

First-line test when acute dengue infection is suspected, particularly during the febrile phase of illness in endemic regions or after recent travel.

  • Confirming acute dengue

    A positive IgM during a febrile illness in someone who has been exposed strongly supports a current dengue infection.

  • Guiding clinical monitoring

    Confirming dengue tells your doctor to watch platelet counts and fluid status through the critical phase of the illness.

  • Distinguishing dengue from lookalikes

    Malaria, typhoid and other tropical fevers can look identical at the bedside, and antibody testing helps separate them.

  • Placing the illness in time

    Because IgM appears and fades on a predictable schedule, it helps locate where in the course of dengue you are.

When This Test Is Ordered

Reasons your doctor may request the Dengue Antibody, IgM, Rapid Detection Test test

Your doctor may order this test for any of the reasons below. Some are routine checks, others follow specific symptoms or an earlier result.

  • Dengue-like symptoms

    • Fever with headache, pain behind the eyes and marked muscle or joint aching.
    • A rash appearing as the fever settles, a common dengue pattern.

  • Travel to a dengue area

    • Fever beginning during or shortly after travel to an area where dengue circulates.

  • Falling platelets & repeat testing

    • Unexplained fever alongside a falling platelet count.
    • Follow-up when an earlier sample taken very early in the illness was negative.
Preparation
The short version
No prep needed.
  • Blood
  • Free home collection
  • No fasting
  • Results in 24 Hours
  1. 1
    Book any time

    No fasting window: pick any slot that suits you, online or on WhatsApp.

  2. 2
    We come to you

    A DHA-licensed nurse collects your sample at home or in the office: free home collection.

  3. 3
    Results in 24 Hours

    A physician-reviewed, easy-to-read report lands securely by WhatsApp and email.

Prep note
Physician reviewed

No fasting is required and you may eat, drink and take your regular medicines as usual.

The most useful thing you can bring is an accurate date for when your fever began, because IgM only becomes detectable after the first days of illness and testing earlier can be negative in genuine dengue. Mention any travel in the preceding weeks, any previous dengue episode, and any yellow fever, Japanese encephalitis or dengue vaccination.

Keep drinking fluids: dengue causes fluid loss, and being well hydrated also makes the blood draw easier. If you are unwell now, be assessed clinically rather than waiting at home for the result.

Understanding Your Results

A Non-Reactive / Negative result means no dengue IgM was detected. IgM becomes detectable only a few days after fever starts, so a sample taken in the first days of fever can be negative in genuine dengue; your doctor may repeat it or add NS1 antigen testing, which covers those earliest days. A Reactive / Positive result means IgM is present, which supports a current or recent dengue infection when the sample was taken in the right window. It is not conclusive on its own: IgM can stay detectable for weeks to months after recovery, and related flaviviruses such as Zika or Japanese encephalitis, or vaccines against them, can cross-react. Your doctor reads the result with your IgG, the day your fever began and your travel history. Fever after recent travel to a dengue area needs prompt medical assessment rather than a wait for the report.

SmartReport

Dengue Antibody, IgM, Rapid Detection Test

A Non-Reactive / Negative result means no dengue IgM was detected. IgM becomes detectable only a few days after fever starts, so a sample taken in the first days of fever can be negative in genuine dengue; your doctor may repeat it or add NS1 antigen testing, which covers those earliest days. A Reactive / Positive result means IgM is present, which supports a current or recent dengue infection when the sample was taken in the right window. It is not conclusive on its own: IgM can stay detectable for weeks to months after recovery, and related flaviviruses such as Zika or Japanese encephalitis, or vaccines against them, can cross-react. Your doctor reads the result with your IgG, the day your fever began and your travel history. Fever after recent travel to a dengue area needs prompt medical assessment rather than a wait for the report.

Non-Reactive / Negative

No infection or antibodies detected: a negative result.

Reactive / Positive

Detected: a positive result. Please consult your physician for confirmation and next steps.

This test is reported descriptively rather than on a numeric scale: each finding below explains what your report may say.

This information is for general education only and is not medical advice. Reference ranges can vary by laboratory, age, sex, and individual factors. Always consult your physician or doctor to interpret your results.

Reading a High or Low Result

  • What a higher result can point to

    • Acute dengue infection in the antibody-producing phase of the illness.
    • Recent dengue infection within the past weeks to months, as IgM has not yet faded.
    • Secondary dengue infection, although the IgM response may be smaller than in a first infection.
    • Cross-reaction with other flaviviruses such as Zika or Japanese encephalitis, or with recent vaccination against them.

These are possibilities, not diagnoses. A single value outside the reference range is interpreted alongside your symptoms, history and other tests: your doctor decides what it means for you.

Limitations & Safety

What this test cannot tell you

  • A sample taken in the first days of fever may be negative because IgM has not yet developed, so early testing can miss genuine dengue.
  • IgM can remain detectable for months, so a positive result does not always mean the current illness is dengue.
  • Cross-reactivity with related flaviviruses and with some vaccines can produce false positives.
  • This test does not replace clinical care: fever after travel to a dengue area needs prompt medical assessment, and severe abdominal pain, persistent vomiting, bleeding from the gums or nose, blood in vomit or stool, or extreme lethargy or restlessness need emergency care immediately.

Risks of the blood draw

  • Mild bruising or brief soreness where the needle went in.
  • Occasional lightheadedness, which settles after a few minutes of rest.
  • Bleeding or infection at the site, which is rare with sterile single-use equipment.
Key Points
  • 1IgM is the early antibody response to dengue and points to current or recent infection, unlike IgG which persists and reflects past exposure.
  • 2It appears a few days into the fever, so testing very early in the illness can be negative even in real dengue.
  • 3NS1 antigen testing covers the earliest days that IgM does not.
  • 4IgM stays detectable for weeks to months after recovery.
  • 5Fever with recent travel to a dengue area needs prompt medical review, and warning signs emerging as the fever settles are an emergency.
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FAQ

Frequently Asked Questions

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Yes. IgM takes a few days from the start of fever to become detectable, so an early test can be negative in a real infection. Your doctor may add NS1 antigen testing or repeat the antibody test later in the illness.