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.