Human West Nile Virus Infections: Colorado, December 31, 2012

  New cases Clinical diagnosis Total cases Total deaths
Fever Meningitis Encephalitis
County of Residence . 7 6 3 16 .
Adams
Alamosa . . 1 . 1 .
Arapahoe . 1 2 1 4 1
Baca . . . 1 1 .
Boulder . 1 . . 1 .
Broomfield . 1 1 . 2 .
Delta . 16 4 2 22 1
Denver . 7 4 5 16 .
Douglas . . 1 . 1 .
El Paso . . 1 1 2 .
Fremont . 3 2 . 5 .
Jefferson . 2 1 . 3 .
La Plata . 1 2 1 4 1
Larimer . 5 1 2 8 .
Las Animas . 1 . . 1 .
Mesa . 6 6 2 14 .
Montrose . 13 5 2 20 2
Morgan . 1 . 1 2 .
Otero . 1 . . 1 .
Prowers . . . 1 1 .
Pueblo . . 1 . 1 .
Weld . 3 1 1 5 .
COLORADO . 69 39 23 131 5

Counties not listed have no verified human cases of WNV
 



Clinical Diagnosis Associated with Human West Nile Virus Infections: Colorado, 2012

  % of cases
TYPE of WEST NILE INFECTION 52.7
Fever
Meningitis 29.8
Encephalitis 17.6
Total 100.0

 
 
 



Cases of West Nile Virus by Age Group & Gender: Colorado, 2012

  GENDER Total
Male Female
AGE GROUP 0 0 0
0-9
10-19 1 1 2
20-29 5 3 8
30-39 6 12 18
40-49 19 7 26
50-59 14 18 32
60-69 19 3 22
70-79 8 5 13
80+ 4 6 10
Total 76 55 131

 



Analysis of West Nile Virus Cases by Age

  Age
N Mean Median Min Max
TYPE of WEST NILE INFECTION 69 49.6 49.0 17 87
Fever
Meningitis 39 54.3 54.0 21 86
Encephalitis 23 62.1 64.0 27 87
Overall 131 53.2 54.0 17 87

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