Shasta Mosquito and Vector Control West Nile Virus Activity: 2004 - 2017

 
2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Humans
1 1 2 2 1
1
0
0
0
1
9*
4 1 5
Horses
0 1 2 1 0
5
0
0
1
0
3
0 1 10*
Sentinel Chickens
4 3 18 11 21*
6
0
0
0
3
7
4 7 5
Mosquito Samples
0 12 48* 33 15
17
1
0
2
0
17
7 0 12
Dead Birds
2 3 15 6 38
36
0
4
9
7
45
88 28 90*
Squirrels
0 0 0 0 1
1
0
0
0
0
0
2* 0 1
                                                                                                      *All-Time District Record

The all-time District record for WNV+ Dead Birds was 90 set in 2004, though all dead bird collection and testing was curtailed early.
The record for horse cases (30 cases) was also in 2004 with 10 Horse fatalities.
Squirrels are no longer tested.  The record of two squirrels was in 2006.

California Surveillance Maps
California WNV Totals                                                                        
U.S. National WNV Totals
Canadian National WNV Totals
Zika Information for California
 

 

WNV Risk Level: