Shasta Mosquito and Vector Control
West Nile Virus Activity: 2004 - 2022
|
|
2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Humans
|
0 | 1 | 3 | 2 | 0 | 1 | 1 | 1 | 2 | 2 | 1 |
1
|
0
|
0
|
0
|
1
|
9*
|
4 | 1 | 5 |
|
Horses
|
0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 0 |
5
|
0
|
0
|
1
|
0
|
3
|
0 | 1 | 10* |
|
Sentinel Chickens
|
0 | 3 | 3 | 3 | 1 | 4 | 4 | 3 | 18 | 11 | 21* |
6
|
0
|
0
|
0
|
3
|
7
|
4 | 7 | 5 |
|
Mosquito Samples
|
0 | 39 | 28 | 25 | 3 | 8 | 0 | 12 | 48* | 33 | 15 |
17
|
1
|
0
|
2
|
0
|
17
|
7 | 0 | 12 |
|
Dead Birds
|
0 | 1 | 0 | 0 | 1 | 5 | 2 | 3 | 15 | 6 | 38 |
36
|
0
|
4
|
9
|
7
|
45
|
88 | 28 | 90* |
|
Squirrels
|
0 | 0 | 0 | 0 | 0 | 0 | 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.
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: