West Nile Virus Statistics
Annual Summaries
| West Nile Virus in Texas, 2010 |
| Sample Type |
Cases |
Counties |
| Bird |
18 |
2 |
| Human WNF |
12 |
8 |
| Human WNND |
77 |
21 |
| Mosquito |
315 |
7 |
| Horse |
13 |
11 |
| Other |
0 |
0 |
| Total |
435 |
*37 |
| West Nile Virus in Texas, 2009 |
| Sample Type |
Cases |
Counties |
| Bird |
10 |
2 |
| Human WNF |
21 |
9 |
| Human WNND |
85 |
25 |
| Mosquito |
380 |
14 |
| Horse |
18 |
15 |
| Other |
1 |
1 |
| Total |
515 |
*47 |
| West Nile Virus in Texas, 2008 |
| Sample Type |
Cases |
Counties |
| Bird |
3 |
2 |
| Human WNF |
24 |
16 |
| Human WNND |
38 |
13 |
| Mosquito |
116 |
12 |
| Horse |
19 |
17 |
| Other |
1 |
1 |
| Total |
201 |
*41 |
| West Nile Virus in Texas, 2007 |
| Sample Type |
Cases |
Counties |
| Bird |
90 |
5 |
| Human WNF |
90 |
34 |
| Human WNND |
170 |
48 |
| Mosquito |
407 |
20 |
| Horse |
94 |
58 |
| Other |
0 |
0 |
| Total |
851 |
*93 |
| West Nile Virus in Texas, 2006 |
| Sample Type |
Cases |
Counties |
| Bird |
126 |
17 |
| Human WNF |
121 |
28 |
| Human WNND |
233 |
46 |
| Mosquito |
464 |
23 |
| Horse |
111 |
64 |
| Other |
0 |
0 |
| Total |
1055 |
*98 |
| West Nile Virus in Texas, 2005 |
| Sample Type |
Cases |
Counties |
| Bird |
204 |
15 |
| Human WNF |
67 |
24 |
| Human WNND |
128 |
38 |
| Mosquito |
328 |
23 |
| Horse |
61 |
46 |
| Other |
1 |
1 |
| Total |
789 |
*78 |
| West Nile Virus in Texas, 2004 |
| Sample Type |
Cases |
Counties |
| Bird |
490 |
25 |
| Human WNF |
0 |
0 |
| Human WNND |
119 |
40 |
| Mosquito |
423 |
22 |
| Horse |
168 |
71 |
| Other |
0 |
0 |
| Total |
1200 |
*101 |
| West Nile Virus in Texas, 2003 |
| Sample Type |
Cases |
Counties |
| Bird |
532 |
70 |
| Human WNF |
0 |
0 |
| Human WNND |
439 |
86 |
| Mosquito |
1056 |
37 |
| Horse |
716 |
164 |
| Other |
10 |
3 |
| Total |
2753 |
*190 |
| West Nile Virus in Texas, 2002 |
| Sample Type |
Cases |
Counties |
| Bird |
519 |
61 |
| Human WNF |
0 |
0 |
| Human WNND |
202 |
37 |
| Mosquito |
259 |
15 |
| Horse |
1699 |
204 |
| Other |
0 |
0 |
| Total |
2679 |
*213 |
* West Nile Virus may be found in multiple sources in the same county.
A major source of West Nile horse data is the Texas Veterinary Medical Diagnostic Laboratory.