Zika virus is transmitted primarily through the bite of an infected mosquito. It can also be passed
through sex from a person who has Zika virus infection to his or her partner. A pregnant woman can
pass Zika virus to her fetus during pregnancy.
Zika virus infection during pregnancy is still a threat to mothers and babies. Babies born to mothers with Zika virus infection during pregnancy can have adverse outcomes, such as microcephaly and other severe brain and central nervous system defects. Not all Zika-related birth defects are noticeable at birth; *all infants born to mothers with lab evidence of Zika virus infection should be closely monitored after birth and throughout the first whole year of life.
Learn more about Zika and Pregnancy from the Centers for Disease Control and Prevention (CDC).