Dengue Virus IgG Antibody, Qualitative (Serum/Plasma)

Why This Test Is Done

Your healthcare provider may order this test if you’ve traveled to or live in an area where dengue fever is common, or if you’ve had symptoms like fever, headache, or body aches that could suggest dengue. It can also be used to confirm a diagnosis if other tests are inconclusive or if you’ve recovered from dengue.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process takes a few minutes, and you may feel a brief pinch. If you’re pregnant, have a bleeding disorder, or take blood-thinning medications, let your provider know before the test.

What the Test Results Mean

Positive results indicate you’ve likely had dengue virus exposure in the past, meaning your immune system has produced antibodies against the virus. Negative results suggest no detectable antibodies, meaning either you’ve never been exposed or the antibodies have cleared from your system.

Common Causes of False Results

False negatives may occur if the test is taken too soon after exposure (within the first few weeks). False positives are rare but can happen if you have other infections or conditions that produce similar antibodies.