Table 2.
The number of reported cases and the reported incidence rate (IR) per million person-years by state for Ehrlichia chaffeensis and Ehrlichia ewingii, 2008–2012
| State | E. chaffeensis | E. ewingii |
|---|---|---|
| No. of cases (rate*) | No. of cases (rate*) | |
| Alabama | 45 (1.9) | 0 (0) |
| Alaska | NN | NN |
| Arizona | 0 (0) | 0 (0) |
| Arkansas | 283 (19.4) | 0 (0) |
| California | 5 (0.03) | 0 (0) |
| Colorado | NN | NN |
| Connecticut | 2 (0.1) | 0 (0) |
| Delaware | 89 (19.8) | 5 (1.1) |
| District of Columbia | NN | NN |
| Florida | 69 (0.7) | 0 (0) |
| Georgia | 104 (2.1) | 1 (0.02) |
| Hawaii | NN | NN |
| Idaho | NN | NN |
| Illinois | 138 (2.2) | 1 (0.02) |
| Indiana | 4 (0.1) | 0 (0) |
| Iowa | NN | NN |
| Kansas | 71 (5) | 1 (0.1) |
| Kentucky | 87 (4) | 0 (0) |
| Louisiana | 2 (0.1) | 1 (0.04) |
| Maine | 10 (1.5) | 0 (0) |
| Maryland | 183 (6.3) | 2 (0.1) |
| Massachusetts | 55 (1.7) | 0 (0) |
| Michigan | 18 (0.4) | 0 (0) |
| Minnesota | 50 (1.9) | 2 (0.1) |
| Mississippi | 14 (0.9) | 0 (0) |
| Missouri | 788 (26.3) | 33 (1.1) |
| Montana | NN | NN |
| Nebraska | 8 (0.9) | 0 (0) |
| Nevada | 0 (0) | 0 (0) |
| New Hampshire | 18 (2.7) | 0 (0) |
| New Jersey | 326 (7.4) | 0 (0) |
| New Mexico | NN | NN |
| New York City | 35 (0.9) | 0 (0) |
| New York State | 250 (4.5) | 0 (0) |
| North Carolina | 374 (7.8) | 0 (0) |
| North Dakota | 0 (0) | 0 (0) |
| Ohio | 40 (0.7) | 1 (0.02) |
| Oklahoma | 580 (30.9) | 0 (0) |
| Oregon | 0 (0) | 0 (0) |
| Pennsylvania | 27 (0.4) | 0 (0) |
| Rhode Island | 43 (8.2) | 0 (0) |
| South Carolina | 12 (0.5) | 1 (0.04) |
| South Dakota | 1 (0.2) | 0 (0) |
| Tennessee | 309 (9.7) | 5 (0.2) |
| Texas | 43 (0.3) | 0 (0) |
| Utah | 0 (0) | 0 (0) |
| Vermont | 1 (0.3) | 0 (0) |
| Virginia | 432 (10.8) | 2 (0.05) |
| Washington | 1 (0.05) | 0 (0) |
| West Virginia | 5 (0.5) | 0 (0) |
| Wisconsin | 91 (3.2) | 0 (0) |
| Wyoming | 0 (0) | 0 (0) |
The number of incident cases is from the Nationally Notifiable Diseases Surveillance System and the number of person-years at risk is from the U.S. Census Bureau, 2008–2012. States where the disease was not notifiable for the duration of 2008–2012 are designated as “NN.”
*
IR per million persons per year.