2015 Final Data for the United States

  • In 2015, chikungunya virus disease became a nationally notifiable condition. Cases are reported to CDC by state and local health departments using standard case definitions.
  • In 2015, a total of 896 chikungunya virus disease cases were reported to ArboNET from U.S. states for 2015 (Table & Map). One locally-transmitted case was reported from Texas.   All other cases occurred in travelers returning from affected areas.
  • A total of 237 chikungunya virus disease cases were reported to ArboNET from U.S. territories for 2015 (Table). All of these were locally-transmitted cases reported from Puerto Rico and the US Virgin Islands.  The remaining 10 cases occurred in travelers returning from other affected areas.
  • Table. Laboratory-confirmed chikungunya virus disease cases reported to ArboNET by state or territory— United States, 2015 Adobe PDF file pdf icon[PDF – 1 page]

States reporting chikungunya virus disease cases – United States, 2015

Map of the United States showing states reporting travel-associated chikungunya virus disease cases, including, Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, and Wisconsin.

Downloadable version of above map pdf icon[PDF – 1 page]