The Zika virus has been in the news and causing concerns. Unfortunately, there is still a lot we don’t know about Zika. Research is under way to get a better understanding of the virus. In the meantime, read on for important facts and preventative measures. The Zika virus is primarily a mosquito-borne illness, spread by the bite of an infected Aedes mosquito. Currently, there are outbreaks in a number of countries (click here for CDC information on areas with Zika). At this time, there have been no locally-transmitted cases of Zika in the continental United States, but Aedes mosquitoes are in some parts of the U.S.