CDC Media Statement (Jan. 26, 2016):
"CDC is working with other public health officials to monitor for ongoing Zika virus transmission. Today, CDC added the following destinations to the Zika virus travel alerts: United States Virgin Islands and Dominican Republic. Previously, CDC issued a travel alert (Level 2-Practice Enhanced Precautions) for people traveling to regions and certain countries where Zika virus transmission is ongoing: the Commonwealth of Puerto Rico, a U.S. territory; Barbados; Bolivia; Brazil; Cape Verde; Colombia; Ecuador; El Salvador; French Guiana; Guadeloupe; Guatemala; Guyana; Haiti; Honduras; Martinique; Mexico; Panama; Paraguay; Saint Martin; Samoa; Suriname; and Venezuela. Specific areas where Zika virus transmission is ongoing are often difficult to determine and are likely to continue to change over time.
As more information becomes available, CDC travel alerts will be updated. Travelers to areas where cases of Zika virus infection have been recently confirmed are at risk of being infected with the Zika virus. Mosquitoes that spread Zika are aggressive daytime biters, prefer to bite people, and live indoors and outdoors near people. There is no vaccine or medicine available for Zika virus. The best way to avoid Zika virus infection is to prevent mosquito bites.
Some travelers to areas with ongoing Zika virus transmission will become infected while traveling but will not become sick until they return home. Some people who are infected do not have any symptoms. Symptoms include fever, rash, joint pain, and red eyes. Other commonly reported symptoms include muscle pain and headache. The illness is usually mild with symptoms lasting from several days to a week. Severe disease requiring hospitalization is uncommon and case fatality is low. Travelers to these areas should monitor for symptoms or illness upon return. If they become ill, they should tell their healthcare professional where they have traveled and when."