Dr. Vandana Bhide with Zika virus protection tips

Officials from the Centers for Disease Control and Prevention are working with the Florida Department of Health to investigate the first Zika case that appears to have no connection to travel or sexual contact transmission.

Mayo Clinic internal medicine specialist Dr. Vandana Bhide from Mayo Clinic's campus in Jacksonville, Florida, says the challenge is determining if there is now an infected population of mosquitoes in the U.S.