TABLE 3. Annual number of West Nile virus neuroinvasive disease cases, by year and state — United States, 2009–2018.
| Region/State | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | Average | Median |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
United States
|
386
|
629
|
486
|
2,873
|
1,267
|
1,347
|
1,455
|
1,309
|
1,425
|
1,658
|
1,284
|
1,328
|
|
New England
|
0
|
14
|
15
|
42
|
11
|
8
|
16
|
15
|
10
|
62
|
19
|
15
|
| Connecticut |
0 |
7 |
8 |
12 |
1 |
3 |
8 |
1 |
2 |
18 |
6 |
5 |
| Maine |
0 |
0 |
0 |
1 |
0 |
0 |
1 |
0 |
0 |
1 |
<1 |
0 |
| Massachusetts |
0 |
6 |
5 |
25 |
7 |
5 |
7 |
10 |
5 |
42 |
11 |
7 |
| New Hampshire |
0 |
1 |
0 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
<1 |
0 |
| Rhode Island |
0 |
0 |
1 |
2 |
1 |
0 |
0 |
2 |
1 |
0 |
1 |
1 |
| Vermont |
0 |
0 |
1 |
1 |
1 |
0 |
0 |
2 |
2 |
1 |
1 |
1 |
|
Middle Atlantic
|
9
|
123
|
35
|
116
|
34
|
36
|
82
|
43
|
66
|
216
|
76
|
55
|
| New Jersey |
3 |
15 |
2 |
22 |
10 |
6 |
23 |
11 |
6 |
44 |
14 |
11 |
| New York |
6 |
89 |
28 |
61 |
18 |
19 |
42 |
20 |
45 |
77 |
41 |
35 |
| Pennsylvania |
0 |
19 |
5 |
33 |
6 |
11 |
17 |
12 |
15 |
95 |
21 |
14 |
|
East North Central
|
9
|
80
|
73
|
494
|
167
|
59
|
112
|
177
|
192
|
306
|
167
|
140
|
| Illinois |
5 |
45 |
22 |
187 |
86 |
36 |
51 |
98 |
72 |
126 |
73 |
62 |
| Indiana |
2 |
6 |
7 |
46 |
19 |
9 |
16 |
15 |
18 |
26 |
16 |
16 |
| Michigan |
1 |
25 |
32 |
141 |
24 |
1 |
16 |
42 |
32 |
80 |
39 |
29 |
| Ohio |
0 |
4 |
10 |
76 |
21 |
10 |
23 |
12 |
23 |
45 |
22 |
17 |
| Wisconsin |
1 |
0 |
2 |
44 |
17 |
3 |
6 |
10 |
47 |
29 |
16 |
8 |
|
West North Central
|
26
|
32
|
31
|
225
|
288
|
104
|
82
|
175
|
118
|
364
|
145
|
111
|
| Iowa |
0 |
5 |
5 |
11 |
24 |
5 |
4 |
16 |
10 |
59 |
14 |
8 |
| Kansas |
4 |
4 |
4 |
20 |
34 |
18 |
12 |
18 |
12 |
23 |
15 |
15 |
| Minnesota |
1 |
4 |
1 |
34 |
31 |
6 |
3 |
38 |
13 |
34 |
17 |
10 |
| Missouri |
4 |
3 |
6 |
17 |
24 |
10 |
23 |
9 |
17 |
17 |
13 |
14 |
| Nebraska |
11 |
10 |
14 |
42 |
54 |
41 |
19 |
35 |
19 |
124 |
37 |
27 |
| North Dakota |
0 |
2 |
1 |
39 |
64 |
12 |
10 |
24 |
20 |
60 |
23 |
16 |
| South Dakota |
6 |
4 |
0 |
62 |
57 |
12 |
11 |
35 |
27 |
47 |
26 |
20 |
|
South Atlantic
|
16
|
38
|
67
|
185
|
36
|
38
|
76
|
31
|
91
|
172
|
75
|
53
|
| Delaware |
0 |
0 |
1 |
2 |
3 |
0 |
0 |
0 |
0 |
8 |
1 |
0 |
| District of Columbia |
2 |
3 |
10 |
8 |
0 |
1 |
3 |
1 |
1 |
7 |
4 |
3 |
| Florida |
2 |
9 |
20 |
52 |
5 |
12 |
12 |
6 |
4 |
30 |
15 |
11 |
| Georgia |
4 |
4 |
14 |
46 |
4 |
11 |
13 |
4 |
44 |
30 |
17 |
12 |
| Maryland |
0 |
17 |
10 |
25 |
11 |
6 |
31 |
6 |
5 |
35 |
15 |
11 |
| North Carolina |
0 |
0 |
2 |
7 |
3 |
0 |
4 |
2 |
8 |
10 |
4 |
3 |
| South Carolina |
3 |
1 |
0 |
20 |
3 |
3 |
0 |
6 |
16 |
12 |
6 |
3 |
| Virginia |
5 |
4 |
8 |
20 |
6 |
5 |
13 |
6 |
12 |
38 |
12 |
7 |
| West Virginia |
0 |
0 |
2 |
5 |
1 |
0 |
0 |
0 |
1 |
2 |
1 |
1 |
|
East South Central
|
38
|
8
|
56
|
173
|
48
|
38
|
36
|
48
|
117
|
67
|
63
|
48
|
| Alabama |
0 |
1 |
5 |
38 |
3 |
0 |
5 |
13 |
40 |
16 |
12 |
5 |
| Kentucky |
3 |
2 |
4 |
13 |
1 |
0 |
1 |
5 |
9 |
9 |
5 |
4 |
| Mississippi |
31 |
3 |
31 |
103 |
27 |
26 |
25 |
27 |
46 |
31 |
35 |
29 |
| Tennessee |
4 |
2 |
16 |
19 |
17 |
12 |
5 |
3 |
22 |
11 |
11 |
12 |
|
West South Central
|
117
|
104
|
28
|
1,146
|
223
|
332
|
302
|
319
|
174
|
182
|
293
|
203
|
| Arkansas |
6 |
6 |
1 |
44 |
16 |
9 |
16 |
8 |
15 |
6 |
13 |
9 |
| Louisiana |
10 |
20 |
6 |
155 |
34 |
61 |
41 |
38 |
38 |
56 |
46 |
38 |
| Oklahoma |
8 |
1 |
1 |
103 |
60 |
9 |
49 |
21 |
34 |
12 |
30 |
17 |
| Texas |
93 |
77 |
20 |
844 |
113 |
253 |
196 |
252 |
87 |
108 |
204 |
111 |
|
Mountain
|
77
|
157
|
71
|
190
|
216
|
157
|
156
|
156
|
243
|
130
|
155
|
157
|
| Arizona |
12 |
107 |
49 |
87 |
50 |
80 |
67 |
57 |
98 |
25 |
63 |
62 |
| Colorado |
36 |
26 |
2 |
62 |
90 |
46 |
57 |
59 |
29 |
52 |
46 |
49 |
| Idaho |
9 |
0 |
1 |
5 |
14 |
6 |
5 |
3 |
16 |
10 |
7 |
6 |
| Montana |
2 |
0 |
1 |
1 |
10 |
2 |
3 |
3 |
3 |
25 |
5 |
3 |
| Nevada |
7 |
0 |
12 |
5 |
8 |
3 |
4 |
13 |
31 |
3 |
9 |
6 |
| New Mexico |
6 |
21 |
4 |
24 |
24 |
19 |
12 |
6 |
23 |
5 |
14 |
16 |
| Utah |
1 |
1 |
1 |
3 |
4 |
1 |
5 |
7 |
39 |
7 |
7 |
4 |
| Wyoming |
4 |
2 |
1 |
3 |
16 |
0 |
3 |
8 |
4 |
3 |
4 |
3 |
|
Pacific
|
94
|
73
|
110
|
301
|
244
|
575
|
593
|
345
|
414
|
159
|
291
|
273
|
| Alaska |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
<1 |
0 |
| California |
67 |
72 |
110 |
297 |
237 |
561 |
585 |
335 |
401 |
154 |
282 |
267 |
| Hawaii |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Oregon |
1 |
0 |
0 |
0 |
7 |
7 |
0 |
2 |
3 |
2 |
2 |
2 |
| Washington | 26 | 1 | 0 | 4 | 0 | 7 | 8 | 8 | 10 | 2 | 7 | 6 |