The agency has been collecting information on pregnant women, who are most affected because the virus can cause their fetuses to develop microcephaly, which stunts brain and skull development, as well as other significant birth defects.
The CDC has reported just a small number of outcomes so far, which include misscarraige and birth defects as well as healthy babies. CDC officials want to collect more information on outcomes to better understand the risks during pregnancy from the mosquito-borne virus. They will begin regularly reporting live-born infants with birth defects and pregnancy losses with birth defects.
A new pregnancy registry shows that there are now 234 pregnant women in the United States infected with any lab evidence of Zika. A total of 756 cases of Zika have been reported in people who have traveled. There are 11 sexually transmitted cases.
In Maryland, 25 travel-related cases of Zika have been recorded, and at least one pregnant woman has been infected. The state is not updating the number of pregnancy cases.