Is Zika Still a Threat in the U.S.?
In 2017, the CDC’s national monitoring system reported 427 cases of symptomatic Zika virus within the United States: Exactly 416 cases were the result of travelers returning from a Zika-affected area. Four cases were attributable to local mosquito-borne transmissions in Florida. Seven cases were attributable to other sources like sexual contact. In the U.S. Territories—American Samoa, Guam,…