West Nile Virus Surveillance Program

2011 Surveillance Data

Go to Current National Data

 

2000 - 2001 - 2002 - 2003 - 2004 -
2005 - 2006 - 2007 - 2008 - 2009 - 2010 - 2011 - 2012 - 2013

Rate per 100K 2002-2011.pdfRate per 100K 2002-2011.pdf

2011 Humans

Category Number
Clinical Positive Individuals 28
Positive Blood Donors 10
Cumulative Clinical and Blood Donor Cases 38

 

2011 Human Clinical Specifics

Counties 12

Age Range

-

0-13

NA

14-25

3

26-50

12

51-64

9

65+

4

Gender

-
Male 15

Female

13

Diagnosis

-

WNV Meningoencephalitis

14

WN Fever

14

WNV Other Neuroninvasive

NA

- -

Hospitalized

16

Deaths

0

 

2011 Animals

Surveillance
Type
Number
Reported
Number
Tested
Number
Positives
Maps
Dead Birds 98 114 2 PDF Map
Mosquito Pools NA 2303 53 PDF Map
Equines 1 NA 1 PDF Map
Dogs NA NA NA NA

 

Dead Birds

Testing criteria for dead birds in Nebraska are only birds that have been dead less than 24 hours; all species of birds (fledgling age and older) will be accepted for testing; and birds will only be accepted from counties with less than five positive dead birds. Specific date and address information (including county and zip code) is requested for birds that are submitted for testing.

Mosquitoes

Adult mosquitoes are collected every two weeks from routine surveillance sites around the state. Supplemental mosquito trapping may be performed by Health and Human Services System personnel as needed. A mosquito sample is all mosquitoes from one CDC-miniature light trap ran for one night at a single location. Samples are sorted and female (bloodfeeding) mosquitoes are identified to species and counted. Mosquitoes in the genus Culex are pooled in vials containing up to 50 mosquitoes of the same species and are submitted for testing for West Nile virus.

Image of a mosquito trap.  Close up image of a mosquito trap.  Image of a New Jersey light trap.

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