West Nile Virus Activity 2011201220132014201520162017201820192020202120222023 Birds0151897191122007202Mosquitoes0001616201500001 Humans0201001000010 2023 Alameda County WNV activity2021 Alameda County WNV activity2020 Alameda County WNV activity2018 Alameda County WNV activity2017 Alameda County WNV activity2016 Alameda County WNV activity2015 Alameda County WNV activity2014 Alameda County WNV activityCalifornia West Nile virus activityNational West Nile virus activity
