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    Zika virus updates


    Update to Zika care standards

    The Centers for Disease Control and Prevention (CDC) have issued updated guidelines for the care of pregnant women with possible Zika virus exposure. These updates were recently published due to a noted decrease in the incidence of Zika virus disease in the Americas, evidence that the IgM antibodies persist in the body over 12 weeks after Zika infection and a high false positive rate of IgM assays.


    1. All pregnant women should be asked at every prenatal visit about possible exposure to Zika virus that may have occurred before or during the current pregnancy.

    2. All pregnant women with recent possible Zika virus exposure and symptoms of infection should be tested with both Zika virus nucleic acid test (NAT) and serologic studies to determine a diagnosis.

    3. Asymptomatic pregnant women with ongoing Zika virus exposure should be offered nucleic acid testing (NAT testing) 3 times during pregnancy.

    4. Routine testing is not recommended for asymptomatic patients with recent, but not ongoing, exposure to Zika virus (ie, through travel or sexual exposure), although testing should be considered using a shared patient-provider decision-making model

    5. Pregnant women with possible Zika virus exposure and a fetus with ultrasound fi ndings that are consistent with congenital Zika virus syndrome should be tested for Zika virus with both NAT and serologies.

    6. Preconception testing to determine baseline IgM levels in patients with possible ongoing exposure to Zika virus is not necessary.

    Next: 8 Zika virus facts and tips

    Full information on the updated guidelines can be found at the CDC website - https://www.cdc.gov/mmwr/volumes/66/wr/mm6629e1.htm?s_cid=mm6629e1_w


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