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 IgG
A Zikavirus IgG test detects IgG antibodies against the Zika virus in your blood. The presence of IgG antibodies typically indicates a past infection, suggesting previous exposure to the Zika virus and an established immune response.
What It Measures
This test measures the presence of IgG antibodies specific to the Zika virus. IgG antibodies develop weeks after infection and typically persist for an extended period. The test provides a qualitative result, but cross-reactivity with antibodies from related flaviviruses such as dengue may occur, requiring confirmatory testing.
Why It Matters
Understanding your Zika virus exposure history is important, particularly for individuals who have travelled to endemic regions or are planning a pregnancy. Zika virus infection during pregnancy may be associated with congenital Zika syndrome, including microcephaly. Interpreting IgG results requires awareness of potential cross-reactivity with other flaviviruses.
When to Test
Testing may be recommended after travel to Zika-endemic areas, when evaluating symptoms consistent with Zika infection, or during pregnancy planning for individuals with potential exposure. Consult a healthcare professional for guidance on testing and interpretation.
Lifestyle Tips
When travelling to Zika-endemic regions, use insect repellent, wear long sleeves and trousers, sleep under mosquito nets, and eliminate standing water around your accommodation. If you are planning a pregnancy after potential Zika exposure, discuss recommended waiting periods with your healthcare provider.
Frequently Asked Questions
What does a positive Zikavirus IgG result mean?
A positive IgG result suggests past exposure to the Zika virus. However, cross-reactivity with antibodies from related viruses such as dengue can occur. Your healthcare professional may recommend confirmatory testing for an accurate assessment.
Can Zika virus affect pregnancy?
Yes, Zika virus infection during pregnancy may be associated with congenital Zika syndrome, including microcephaly and other developmental complications. If you are planning a pregnancy and have been in a Zika-endemic area, consult your healthcare provider for testing and guidance.