Information about Zika is constantly evolving and the CDC is now in Brazil doing an intensive study to find out if there is a link between the virus and birth defects.  In the meantime, information is constantly developing.  The best way to get the most updated information is at http://www.cdc.gov/zika/ that includes information about the disease, prevention, the areas with active Zika and more.  Please contact your family physician to discuss the details.