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2015 provisional 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.
  • As of January 12, 2016, a total of 679 chikungunya virus disease cases with illness onset in 2015 have been reported to ArboNET from 44 U.S. states (Table & Map). All reported cases occurred in travelers returning from affected areas. No locally-transmitted cases have been reported from U.S. states.
  • A total of 202 chikungunya virus disease cases with illness onset in 2015 have been reported to ArboNET from U.S. territories (Table). All reported cases were locally-transmitted cases reported from Puerto Rico and the US Virgin Islands.
  • Table. Laboratory-confirmed chikungunya virus disease cases reported to ArboNET by state or territory— United States, 2015 (as of January 12, 2016) Adobe PDF file [PDF - 1 page]

States reporting chikungunya virus disease cases – United States, 2015 (as of January 12, 2016)

  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 - 1 page]

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