Human Cases
Year-to-date: 0 Counties:
No human cases have tested positive for WNV in 2022.
Dead Birds
Year-to-date: 14 Counties: 6
There have been 2 new WNV positive dead birds reported in California last week from Merced (1) and Sacramento (1) counties. This is the first WNV positive dead bird from Merced County this year.
14 dead birds from 6 counties have tested positive for WNV in 2022.
Mosquito Samples
Year-to-date: 138 Counties: 15
There were 51 new WNV positive mosquito samples reported in California last week from the following counties: Fresno (13), Kern (3), Kings (8), Los Angeles (7), Madera (1), Orange (1), Placer (1), Riverside (2), Sacramento (2), San Joaquin (4), Santa Clara (1), Solano (1), and Tulare (7). This is the first indication of WNV from Kings, Madera, Santa Clara, and Solano counties this year.
138 mosquito samples from 15 counties have tested positive for WNV in 2022.
A mosquito sample may contain up to 50 individual mosquitoes.
Sentinel Chickens
Year-to-date: 0 Counties:
No sentinel chickens have tested positive for WNV in 2022.
Horses
Year-to-date: 0 Counties:
No horses have tested positive for WNV in 2022.