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Health Effects & Risks

What we know

  • Zika infection during pregnancy can cause serious birth defects and is associated with other pregnancy problems.
  • Several countries that have experienced Zika outbreaks recently have reported increases in people who have Guillain-Barré syndrome (GBS).
  • Current CDC research suggests that GBS is strongly associated with Zika; however, only a small proportion of people with recent Zika virus infection get GBS.
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