Human West Nile Virus Infections: Colorado, 2005
Updated March 12, 2010

  New cases Clinical diagnosis Total cases Total deaths
Fever Meningitis Encephalitis
County of Residence . 3 1 . 4 .
Adams
Arapahoe . 1 1 . 2 .
Bent . 4 . . 4 .
Boulder . 4 1 . 5 .
Delta . . . 1 1 .
Denver . 5 . . 5 .
Douglas . 1 . . 1 .
Eagle . . 1 . 1 .
El Paso . 1 . . 1 .
Fremont . 4 . . 4 .
Garfield . . 1 . 1 .
Jefferson . 2 2 2 6 .
La Plata . 1 . . 1 .
Larimer . 11 1 1 13 .
Las Animas . 1 . . 1 .
Logan . 4 . . 4 .
Mesa . 8 1 1 10 1
Morgan . 3 . 1 4 1
Otero . 1 . . 1 .
Phillips . 4 . . 4 .
Prowers . 4 . . 4 .
Pueblo . 3 1 1 5 .
Sedgwick . 5 . . 5 .
Weld . 13 3 1 17 .
Yuma . 2 . . 2 .
COLORADO . 85 13 8 106 2

Counties not listed have no verified human cases of WNV
 

 


Clinical Diagnosis Associated with Human West Nile Virus Infections: Colorado, 2009

  % of cases
TYPE of WEST NILE INFECTION 80.2
Fever
Meningitis 12.3
Encephalitis 7.5
Total 100.0

 
 
 

 


Cases of West Nile Virus by Age Group & Gender: Colorado, 2005

  GENDER Total
Male Female
AGE GROUP 1 0 1
0-9
10-19 3 2 5
20-29 4 0 4
30-39 9 7 16
40-49 10 23 33
50-59 9 9 18
60-69 7 8 15
70-79 5 4 9
80+ 1 4 5
Total 49 57 106

 

 


Analysis of West Nile Virus Cases by Age

  Age
N Mean Median Min Max
TYPE of WEST NILE INFECTION 85 47.6 46.0 7 94
Fever
Meningitis 13 55.1 54.0 23 82
Encephalitis 8 61.5 64.5 35 80
Overall 106 49.5 48.0 7 94

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