Maps show dengue fever risk areas as CDC warns of global case surge
CBSN
As dengue cases break international records, U.S. health officials warned doctors Tuesday to be alert for the mosquito-borne virus, prompting questions about where exactly the disease has been detected.
Officials note there is no evidence of a current outbreak, but so far this year there have been three times more cases than at the same point last year in the 50 states — mostly from infections travelers got abroad.
Dengue remains less common in the continental United States than other parts of the world. The virus is often a leading cause of illness in these areas, primarily in tropical and sub-tropical climates around the world. Almost half of the world's population live in areas with dengue risk, according to the Centers for Disease Control and Prevention.
