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Second possible U.S.-borne Zika infection discovered in Florida

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Florida health officials are investigating a second possible case of U.S.-borne Zika.

The two cases, one in Miami-Dade County and another in Broward County, appear to have no connection to travel to Zika-affected areas. Officials also believe that neither victim had sexual contact with a Zika-infected patient, but are investigating that possibility.

The Centers for Disease Control and Prevention said some travelers who are bitten by mosquitoes while still actively infected could cause local outbreaks. The Florida Department of Health is testing mosquitoes in the affected areas to see if the virus has spread.