West Nile Virus Activity

20052006200720082009201020112012201320142015201620172018
Birds4830191310101518971911220
Squirrels52110011040000
Chickens0000000N/A01N/AN/AN/AN/A
Mosquitoes99211000016162015
Horses20000000000000
Humans11010102010010

 

2017 Alameda County WNV activity

2016 Alameda County WNV activity

2015 Alameda County WNV activity

2014 Alameda County WNV activity

California West Nile virus activity

National West Nile virus activity