TABLE 5. Number and proportion of counties with West Nile virus neuroinvasive disease cases for the 10 states with the most reported cases — United States, 2009–2018.
| State | No. counties | Neuroinvasive disease cases | No. and proportion of counties reporting neuroinvasive disease cases |
||
|---|---|---|---|---|---|
| ≥1 case |
≥75% of all state’s cases |
≥50% of all state’s cases |
|||
| No. (%) | No. (%) | No. (%) | |||
| California |
58 |
2,819 |
44 (76) |
7 (12) |
2 (3) |
| Texas |
254 |
2,043 |
167 (66) |
24 (9) |
6 (2) |
| Illinois |
102 |
728 |
59 (58) |
4 (4) |
1 (1) |
| Arizona |
15 |
632 |
14 (93) |
2 (13) |
1 (7) |
| Louisiana |
64 |
459 |
54 (84) |
13 (20) |
6 (9) |
| Colorado |
64 |
459 |
36 (56) |
10 (16) |
5 (8) |
| New York |
62 |
405 |
32 (51) |
7 (11) |
3 (5) |
| Michigan |
83 |
394 |
38 (46) |
4 (5) |
2 (2) |
| Nebraska |
93 |
369 |
63 (68) |
20 (22) |
7 (8) |
| Mississippi | 82 | 350 | 52 (63) | 15 (18) | 5 (6) |