Doctor's Assessment Included
Every result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.
Zikavirus IgM
A Zikavirus IgM test detects IgM antibodies against the Zika virus in your blood. The presence of IgM antibodies may indicate a recent or active Zika virus infection, which is particularly important to identify in the context of pregnancy and travel to endemic regions.
What It Measures
This test measures the presence of IgM antibodies specific to the Zika virus. IgM antibodies typically appear within the first week of infection and may remain detectable for several weeks to months. Cross-reactivity with antibodies from related flaviviruses is possible, so confirmatory testing may be needed.
Why It Matters
Identifying a recent Zika virus infection is critical, especially during pregnancy. Zika virus infection may be associated with congenital Zika syndrome, including microcephaly and other birth defects. Early identification supports appropriate medical management, monitoring, and counselling.
When to Test
Testing may be recommended when Zika virus infection is suspected after travel to an endemic area, when symptoms such as rash, fever, or joint pain occur after potential exposure, or during pregnancy monitoring for at-risk individuals. Consult a healthcare professional for guidance.
Lifestyle Tips
Protect yourself from mosquito bites when travelling to Zika-endemic areas by using insect repellent, wearing protective clothing, and sleeping under bed nets. If you develop symptoms after travel, consult a healthcare professional promptly. If you are pregnant or planning a pregnancy, discuss Zika prevention strategies with your provider.
Frequently Asked Questions
What does a positive Zikavirus IgM result mean?
A positive IgM result may indicate a recent or active Zika virus infection. However, cross-reactivity with other flaviviruses can produce false positive results. Your healthcare professional will consider your travel history, symptoms, and may recommend confirmatory testing.
How long after exposure can Zika IgM antibodies be detected?
Zika IgM antibodies typically become detectable within the first week of infection and may persist for several weeks to months. The timing of testing relative to exposure is important for accurate interpretation. Consult a healthcare professional for guidance.