2020 provisional data for the United States
- 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.
- As of August 6, 2020, a total of 11 chikungunya virus disease cases with illness onset in 2020 have been reported to ArboNET from 7 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.
- No chikungunya virus disease cases with illness onset in 2020 have been reported to ArboNET from U.S. territories.
States reporting chikungunya virus disease cases – United States, 2020 (as of August 6, 2020)
Table. Laboratory-confirmed chikungunya virus disease cases reported to ArboNET by state or territory — United States, 2020 (as of August 6, 2020)
| Travel-associated cases No. (%) |
Locally-transmitted cases No. (%) |
|
|---|---|---|
| State | (N=11) | (N=0) |
| California | 3 (27) | 0 (0) |
| Illinois | 1 (9) | 0 (0) |
| Missouri | 1 (9) | 0 (0) |
| North Carolina | 2 (18) | 0 (0) |
| South Carolina | 1 (9) | 0 (0) |
| Tennessee | 1 (9) | 0 (0) |
| Texas | 2 (18) | 0 (0) |
Page last reviewed: August 6, 2020