The Arkansas Department of Health and the Centers for Disease Control have confirmed that an Arkansas resident has been diagnosed with the Zika virus after returning from a trip abroad. The disease is spread by mosquitoes. According to the CDC, Zika can have symptoms of fever, rash, joint pain and itchy eyes. Symptoms generally last up to a week, and there's no known cure. A bigger possible risk, however, is to pregnant women, with serious birth defects reported in connection with the virus.