Human West Nile Virus Infections: Colorado, 2003
FINAL DATA - updated November 28, 2006

  Clinical diagnosis Total cases Total deaths
Fever Meningitis Encephalitis
COUNTY of RESIDENCE 158 38 36 232 6
Adams
Alamosa 3 . . 3 .
Arapahoe 104 23 11 138 5
Baca 5 . . 5 .
Bent 5 1 . 6 .
Boulder 368 38 15 421 7
Broomfield 44 9 2 55 .
Chaffee 4 . 3 7 .
Cheyenne 2 1 1 4 .
Clear Creek 1 . . 1 .
Conejos 1 . . 1 .
Crowley 2 . 2 4 .
Delta 7 . 3 10 .
Denver 110 39 13 162 9
Douglas 27 9 3 39 .
Eagle 1 . . 1 .
El Paso 85 16 13 114 1
Elbert 7 1 . 8 .
Fremont 69 1 7 77 2
Garfield 2 . . 2 .
Grand 1 . . 1 .
Huerfano 8 1 1 10 .
Jefferson 110 32 15 157 3
Kiowa 1 . . 1 .
Kit Carson 5 . . 5 .
La Plata 10 3 1 14 .
Larimer 483 38 25 546 9
Las Animas 3 . 4 7 1
Lincoln 4 3 1 8 2
Logan 69 4 11 84 2
Mesa 13 4 2 19 2
Moffat 2 . . 2 .
Montezuma 5 . . 5 .
Montrose 5 2 2 9 .
Morgan 51 3 7 61 .
Otero 23 4 1 28 2
Park 1 . . 1 .
Phillips 21 2 . 23 .
Prowers 40 1 2 43 .
Pueblo 136 35 12 183 6
Rio Grande 2 . 1 3 .
Saguache 2 . . 2 .
Sedgwick 13 . . 13 .
Summit 3 . . 3 .
Washington 9 1 . 10 .
Weld 284 78 40 402 6
Yuma 16 1 . 17 .
Total 2325 388 234 2947 63

Counties not listed have no verified human cases of WNV
 

 


Clinical Diagnosis Associated with Human West Nile Virus Infections: Colorado, 2003

  % of cases
TYPE OF WEST NILE INFECTION 78.9
Fever
Meningitis 13.2
Encephalitis 7.9
Total 100.0

 
 
 

 


Cases of West Nile Virus by Age Group & Gender: Colorado, 2003

  Gender Total
Male Female
AGE GROUP 8 5 13
0-4
5-9 15 4 19
10-14 24 11 35
15-19 67 55 122
20-24 69 67 136
25-29 70 88 158
30-34 94 108 202
35-39 107 137 244
40-44 179 181 360
45-49 173 214 387
50-54 189 174 363
55-59 109 122 231
60-64 91 91 182
65-69 68 63 131
70-74 68 70 138
75-79 50 62 112
80-84 24 42 66
85-89 16 19 35
90+ 5 8 13
Total 1426 1521 2947

 

 


Analysis of WNV Cases by Age

Analysis Variable : Age Age
N Mean Median Minimum Maximum
2947 47.2 47.0 0.0 95.0

The Mean or Average is the sum of all ages, divided by the total number cases
The Median is the AGE in which half the cases are higher in AGE and half the cases are lower in AGE
An age of 0 represents a child less than 1 year of age