CDC says the agency did not investigate Dallas Zika case

CHICAGO (Reuters) - The U.S. Centers for Disease Control and Prevention said on Tuesday it has not investigated how the Zika virus was transmitted to a person in Dallas. The health department in Dallas said in a statement on Tuesday the CDC confirmed the person was infected by Zika, but a CDC spokesman said Dallas handled the investigation into how the virus was transmitted. (Reporting by Julie Steenhuysen; Editing by Jonathan Oatis)