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Zika Virus IgG

About

If the body is infected with bacteria, viruses or any other harmful microorganisms, the immune system produces antibodies to fight the infection. IgG antibodies are produced in a delayed response to an infection and can be retained in the body for a long time. Testing for zika virus specific IgG antibodies can help to confirm a zika virus infection.

What might a high result mean?

Detection of IgG in the blood usually indicates a prior zika virus infection however, sometimes it is not possible to determine whether a positive IgG result (without IgM) is due to a recent Zika virus infection, a past Zika virus infection, or cross-reactivity from another flavivirus infection.

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