States reporting chikungunya virus disease cases \ue2\u20ac\u201c United States, 2017 (as of September 5, 2017)

2017 provisional data for the United States\ue2\u20ac\ua2 Chikungunya virus disease became a nationally notifiable condition in 2015. Cases are reported to CDC by state and local health departments using standard case definitions.\ue2\u20ac\ua2 As of September 5, 2017, a total of 36 chikungunya virus disease cases with illness onset in 2017 have been reported to ArboNET from 15 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.\ue2\u20ac\ua2 A total of 30 chikungunya virus disease cases with illness onset in 2017 have been reported to ArboNET from U.S. territories (Table). To date, 30 locally acquired cases have been reported from Puerto Rico