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West Nile Virus Activity

200520062007200820092010201120122013201420152016201720182019
Birds48301913101015189719112200
Mosquitoes992110000161620150
Horses200000000000000
Humans110101020100100

 

2018 Alameda County WNV activity

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