2016 Final 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.
- In 2016, a total of 248 chikungunya virus disease cases with illness onset in 2016 have been reported to ArboNET from 38 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.
- In 2016, a total of 181 chikungunya virus disease cases with illness onset in 2016 have been reported to ArboNET from U.S. territories (Table). Of these, 180 were locally acquired cases reported from Puerto Rico and the US Virgin Islands. The remaining case occurred in a traveler returning from other affected areas.
States reporting chikungunya virus disease cases – United States, 2016
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Table. Laboratory-confirmed chikungunya virus disease cases reported to ArboNET by state or territory — United States, 2016
| Travel-associated cases No. (%) |
Locally-transmitted cases No. (%) |
|
|---|---|---|
| State | (N=248) | (N=0) |
| Alabama | 1 (<1) | 0 (0) |
| Arizona | 2 (1) | 0 (0) |
| Arkansas | 1 (<1) | 0 (0) |
| California | 57 (23) | 0 (0) |
| Connecticut | 2 (1) | 0 (0) |
| Delaware | 1 (<1) | 0 (0) |
| Florida | 8 (3) | 0 (0) |
| Georgia | 1 (<1) | 0 (0) |
| Hawaii | 4 (1) | 0 (0) |
| Illinois | 13 (5) | 0 (0) |
| Indiana | 2 (1) | 0 (0) |
| Iowa | 2 (1) | 0 (0) |
| Kansas | 1 (<1) | 0 (0) |
| Kentucky | 3 (1) | 0 (0) |
| Louisiana | 1 (<1) | 0 (0) |
| Maryland | 4 (2) | 0 (0) |
| Massachusetts | 6 (2) | 0 (0) |
| Michigan | 4 (2) | 0 (0) |
| Minnesota | 16 (6) | 0 (0) |
| Missouri† | 1 (<1) | 0 (0) |
| Montana | 1 (<1) | 0 (0) |
| Nebraska | 1 (<1) | 0 (0) |
| New Hampshire | 1 (<1) | 0 (0) |
| New Jersey | 11 (4) | 0 (0) |
| New Mexico | 3 (1) | 0 (0) |
| New York | 38 (15) | 0 (0) |
| North Carolina | 3 (1) | 0 (0) |
| North Dakota | 1 (<1) | 0 (0) |
| Ohio | 4 (2) | 0 (0) |
| Pennsylvania | 5 (2) | 0 (0) |
| Rhode Island | 3 (1) | 0 (0) |
| South Carolina | 4 (2) | 0 (0) |
| Tennessee | 4 (2) | 0 (0) |
| Texas | 20 (8) | 0 (0) |
| Utah | 1 (<1) | 0 (0) |
| Virginia | 6 (2) | 0 (0) |
| Washington | 10 (4) | 0 (0) |
| Wisconsin | 2 (1) | 0 (0) |
| Territories | (N=1) | (N=180) |
| Puerto Rico | 1 (100) | 179 (99) |
| U.S. Virgin Islands | 0 (0) | 1 (1) |
†Case acquired through laboratory transmission
Page last reviewed: December 17, 2018