2003 West Nile Virus Infections by County
Montana WEST
NILE Detections by County of Residence
|
||||||
|
Humans |
Horses |
Birds |
Mosquito Sampling* |
Totals |
||
| County |
Positives |
Positives |
Positives |
Positives |
#Tested |
Positives |
Beaverhead |
0 |
3 |
|
0 |
6 |
3 |
Big Horn |
11 |
6 |
|
0 |
17 |
Blaine |
7 |
5 |
|
18 |
54 |
30 |
Broadwater |
0 |
3 |
|
0 |
9 |
3 |
Carbon |
1 |
14 |
|
0 |
|
15 |
Carter |
3 |
6 |
|
0 |
|
9 |
Cascade |
10 |
28 |
|
8 |
96 |
46 |
Chouteau |
2 |
2 |
|
0 |
|
3 |
Custer |
14 |
3 |
|
0 |
13 |
17 |
Daniels |
1 |
3 |
|
0 |
|
4 |
Dawson |
9 |
4 |
|
0 |
|
13 |
Deer Lodge |
0 |
0 |
|
0 |
|
0 |
Fallon |
6 |
1 |
|
0 |
|
7 |
Fergus |
1 |
4 |
|
0 |
8 |
5 |
Flathead |
0 |
0 |
|
0 |
2 |
0 |
Gallatin |
1 |
2 |
|
0 |
21 |
3 |
Garfield |
4 |
1 |
|
0 |
|
5 |
Glacier |
2 |
5 |
|
0 |
|
7 |
Golden Valley |
0 |
0 |
|
0 |
|
0 |
Granite |
0 |
0 |
|
0 |
|
0 |
Hill |
9 |
2 |
|
0 |
4 |
11 |
Jefferson |
0 |
0 |
|
0 |
|
0 |
Judith Basin |
0 |
0 |
|
0 |
|
0 |
Lake |
0 |
2 |
|
0 |
|
2 |
Lewis & Clark |
1 |
4 |
|
0 |
3 |
5 |
Liberty |
0 |
0 |
|
0 |
|
0 |
Lincoln |
0 |
0 |
|
0 |
|
0 |
Madison |
0 |
0 |
|
0 |
|
0 |
McCone |
2 |
1 |
|
0 |
|
3 |
Meagher |
0 |
0 |
|
0 |
4 |
0 |
Mineral |
0 |
0 |
|
0 |
|
0 |
Missoula |
0 |
0 |
|
0 |
8 |
0 |
Musselshell |
0 |
2 |
|
0 |
|
2 |
Park |
1 |
3 |
|
0 |
|
4 |
Petroleum |
0 |
0 |
|
0 |
|
0 |
Phillips |
3 |
2 |
4 |
5 |
47 |
14 |
Pondera |
2 |
3 |
|
0 |
|
5 |
Powder River |
4 |
10 |
|
0 |
9 |
14 |
Powell |
0 |
0 |
|
0 |
7 |
0 |
Prairie |
10 |
0 |
|
0 |
|
10 |
Ravalli |
0 |
0 |
|
0 |
13 |
0 |
Richland |
12 |
0 |
|
0 |
|
12 |
Roosevelt |
23 |
0 |
|
0 |
18 |
23 |
Rosebud |
12 |
6 |
|
0 |
|
18 |
Sanders |
0 |
0 |
|
0 |
|
0 |
Sheridan |
12 |
1 |
2 |
0 |
|
15 |
Silver Bow |
0 |
0 |
|
0 |
|
0 |
Stillwater |
3 |
3 |
|
0 |
16 |
6 |
Sweet Grass |
1 |
4 |
|
0 |
|
5 |
Teton |
0 |
17 |
|
0 |
|
17 |
Toole |
0 |
0 |
|
0 |
|
0 |
Treasure |
4 |
2 |
|
0 |
|
6 |
Valley |
17 |
3 |
|
9 |
67 |
29 |
Wheatland |
0 |
2 |
|
0 |
|
2 |
Wibaux |
3 |
0 |
|
0 |
|
3 |
Yellowstone |
35 |
34 |
|
0 |
32 |
69 |
*Other |
2 |
0 |
|
0 |
|
2 |
|
Total |
228 |
193 |
6 |
40 |
437 |
467 |
*Other may include cases that
are WNV cases but are believed to have acquired the disease in another
state.
|
Montana Human WNV Cases as of December 31, 2003 |
Montana Human WNV Cases as
of December 31, 2003 |
|||||
|
Age Groups |
Number |
Percent |
|
Clinical Features |
Number |
Percent |
|
0 to 9 |
5 |
2.2% |
Asymptomatic |
3 |
1.3% |
|
|
10 to 19 |
18 |
7.9% |
|
Fever |
147 |
64.5% |
|
20 to 29 |
15 |
6.6% |
Mening/Enceph |
78 |
34.2% |
|
|
30 to 39 |
22 |
9.6% |
Unknown/Pending |
0 |
0% |
|
|
40 to 49 |
58 |
25.9% |
Total |
228 |
100% |
|
|
50 to 59 |
45 |
19.7% |
||||
|
60 to 69 |
29 |
12.7% |
Hospitalization |
Number | Percent | |
|
70 to 79 |
22 |
9.6% |
No |
141 |
61.8% |
|
|
80 to 89 |
12 |
5.3% |
Yes |
87 |
38.2% |
|
|
90 to 99 |
1 |
0.4% |
Unknown/Pending |
0 |
0% |
|
|
Total |
228 |
100% |
||||
|
Total |
228 |
100% |
Deaths |
4 |
1.8% |
|
- The total number of human cases reflected in the above table includes a previously diagnosed case of WNV that wasn't reported to DPHHS until 2003.
-
MOSQUITO SAMPLES reflect results from counties that are part of a sampling effort. In these areas, single samples of up to 50 mosquitoes were tested for WNV.The number of samples tested to date (shaded area) and the number of positive samples found are detailed.
CAUTION
- Counties not identified with WNV may still have the virus present
despite the lack of positive test results . It should be presumed that
the virus can be found anyplace in Montana and all residents should
follow the recommended precautions.
