What we know
- Zika virus can be passed from a pregnant woman to her fetus.
- Infection during pregnancy can cause a birth defect called microcephaly and other severe fetal brain defects
- Zika primarily spreads through infected mosquitoes. You can also get Zika through sex without a condom with someone infected by Zika, even if that person does not show symptoms of Zika.
- There is no vaccine to prevent or medicine to treat Zika.
- Pregnant women should not travel to areas with risk of Zika.
What we do not know
- How likely it is that Zika infection will affect your pregnancy.
- If your baby will have birth defects if you are infected while pregnant.
- The full range of health effects that Zika virus infection during pregnancy might lead to.
- Page last reviewed: November 2, 2017
- Page last updated: November 2, 2017
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