Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Dengue IgM
A Dengue IgM test detects IgM antibodies against the dengue virus in your blood. A positive result may indicate a recent or active dengue infection, as IgM antibodies are typically the first to appear within days of symptom onset.
What It Measures
This test detects the presence of IgM antibodies directed against the dengue virus in your blood. IgM antibodies are the first antibodies produced during an acute dengue infection, typically becoming detectable three to five days after symptom onset. The test provides a qualitative result indicating whether these early-response antibodies are present.
Why It Matters
Detecting a recent dengue infection is important for timely clinical management and monitoring for potential complications, including severe dengue. Early identification allows healthcare professionals to provide appropriate supportive care. Results should be interpreted by a healthcare professional alongside symptoms and travel history.
When to Test
Testing may be recommended if you develop fever, severe headache, muscle and joint pain, or rash after travelling to a dengue-endemic region, particularly three to seven days after symptom onset. Consult a healthcare professional for guidance.
Lifestyle Tips
Prevent mosquito bites in endemic areas using DEET-based repellents, protective clothing, and mosquito nets. Stay well-hydrated and rest if you suspect dengue infection. Avoid aspirin and non-steroidal anti-inflammatory drugs, as they may increase bleeding risk. Seek immediate medical attention if you experience warning signs such as severe abdominal pain, persistent vomiting, or bleeding.
Frequently Asked Questions
How long do Dengue IgM antibodies remain detectable?
Dengue IgM antibodies typically remain detectable for two to three months after infection, though this can vary between individuals. A positive IgM result in combination with compatible symptoms and travel history can support a diagnosis of recent dengue infection.
Can Dengue IgM cross-react with other viruses?
Yes, dengue IgM antibodies may cross-react with other closely related flaviviruses such as Zika or yellow fever. This is why results should always be interpreted by a healthcare professional who can consider the full clinical picture and may recommend confirmatory testing.